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1

Lopes, C. E. F., and M. G. Pereira. "Astronomia no Infravermelho de Estrelas Variáveis." Sitientibus Série Ciências Físicas 1 (December 20, 2005): 52–58. http://dx.doi.org/10.13102/sscf.v1i.5254.

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Este trabalho tem por objetivo fazer um estudo fotométrico de estrelas variáveis utilizando dados fotométricos do projeto 2 Micron All Sky Survey. Foram analisados dados de fotometria infravermelho nas bandas JHKs de cinco tipos de estrelas variáveis: Wolf Rayet, RS Canum Venaticorum, Sistemas Binários de Raios-X, Fontes Super Soft e Estrelas Simbióticas. As materializações de diagramas Cor-Cor permitiram um estudo das propriedades fotométricas infravermelho intrínsecas destas fontes, e assim obteve-se uma ferramenta para identificação de alvos para estudos mais detalhados a serem realizados posteriormente com telescópios de maior porte.
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2

Lopes, C. E. F., and M. G. Pereira. "Astronomia no Infravermelho de Estrelas Variáveis." Sitientibus Série Ciências Físicas 1 (December 20, 2005): 52. http://dx.doi.org/10.13102/sscf.v1i0.5254.

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Este trabalho tem por objetivo fazer um estudo fotométrico de estrelas variáveis utilizando dados fotométricos do projeto 2 Micron All Sky Survey. Foram analisados dados de fotometria infravermelho nas bandas JHKs de cinco tipos de estrelas variáveis: Wolf Rayet, RS Canum Venaticorum, Sistemas Binários de Raios-X, Fontes Super Soft e Estrelas Simbióticas. As materializações de diagramas Cor-Cor permitiram um estudo das propriedades fotométricas infravermelho intrínsecas destas fontes, eassim obteve-se uma ferramenta para identificação de alvos para estudos mais detalhados a serem realizados posteriormente com telescópios de maior porte.
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3

Pereira, Ana Carolina Costa, Antonia Naiara de Sousa Batista, and Isabelle Coelho da Silva. "A matemática incorporada na construção do quadrante descrito na obra Libros del Saber de Astronomía." Revemat: Revista Eletrônica de Educação Matemática 12, no. 1 (September 13, 2017): 173. http://dx.doi.org/10.5007/1981-1322.2017v12n1p173.

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Dentre as várias alternativas de inserir a história da matemática no ensino, vislumbramos os instrumentos matemáticos, em especial, o quadrante em um quarto de círculo, ou quadrante náutico, utilizado na astronomia de posição, como um recurso que incorpora, manipula e dissemina diversos conceitos. Dessa forma, o artigo tem o intuito de apresentar a matemática presente na construção do quadrante na busca por interfaces que permitam a articulação de conceitos matemáticos em sala de aula. A construção do quadrante está baseada na obra Libros del saber de Astronomía compilado pelo Rei D. Afonso X de Cartilha, escrita entre 1276 e 1279. Esse instrumento apresenta propriedades geométricas que podem ser incorporadas nas aulas de matemática, principalmente, envolvendo a construção de desenhos geométricos, semelhança de triângulos e conceitos fundamentais de trigonometria. Consideramos que a competência didática do instrumento matemático para o ensino é algo palpável e possível de ser introduzido na sala de aula. Contudo, precisamos observá-lo como um elemento que agrega conhecimentos, e não apenas o entendimento das relações matemática envolvidas na sua construção e utilização, mas a compreensão dos motivos de certas construções serem realizadas dessa forma ou estarem naquele local.
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4

Parmar, A. N., M. Bavdaz, F. Favata, T. Oosterbroek, A. Orr, A. Owens, U. Lammers, and D. Martin. "Early Results from the Low-Energy Concentrator Spectrometer on-board BeppoSAX." Symposium - International Astronomical Union 188 (1998): 71–74. http://dx.doi.org/10.1017/s0074180900114457.

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SAX, an acronym for “Satellite Italiano per Astronomia a raggi X”, now renamed “BeppoSAX” in honor of Giuseppe Occhialini, is the first X-ray mission sensitive in the very broad energy range between 0.1 and 300 keV (Boella et al. 1997a). The Narrow Field Instruments (NFI) have approximately 1° fields of view and consist of the imaging low- and medium-energy concentrator spectrometers (LECS, 0.1-10 keV, Parmar et al. 1997; and MECS, 1-10 keV, Boella et al. 1997b), and the non-imaging high pressure gas scintillation proportional counter (HPGSPC, 3-120 keV, Manzo et al. 1997) and Phoswich detector system (PDS, 15-300 keV, Frontera et al. 1997). All the NFI are coaligned and are normally operated simultaneously. In addition, the payload includes two wide field cameras (WFC, 2-30 keV; Jager et al. 1997) which observe in directions perpendicular to the NFI. These allow the detection of X-ray transient phenomena, as well as long-term variability studies.
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De Melo, Enaldo Vieira, and Elton Casado Fireman. "Ensino e aprendizagem de funções trigonométricas por meio do software Geogebra aliado à Modelagem Matemática." Revista de Ensino de Ciências e Matemática 7, no. 5 (December 22, 2016): 12–30. http://dx.doi.org/10.26843/rencima.v7i5.1182.

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A presente pesquisa qualitativa, delineado por um estudo de caso com pesquisa participante, analisou as contribuições da utilização do software Geogebra aliado à Modelagem Matemática no ensino-aprendizagem das funções trigonométricas seno e cosseno, à luz da Aprendizagem Significativa. O estudo foi aplicado a 18 alunos do segundo ano do Ensino Médio de uma escola pública do município de Marechal Deodoro, Alagoas. A investigação foi regida por uma Sequência Didática de Ensino, produto desta dissertação, na qual foi trabalhado o software junto com a Modelagem Matemática de fenômenos periódicos. Os resultados da pesquisa mostraram que o uso do software Geogebra otimizou o ensino e a aprendizagem de funções trigonométricas; foi possível utilizar a Modelagem Matemática como uma metodologia de ensino para a aprendizagem das funções f(x)=a+bsen(cx+d) e g(x)=a+bcos(cx+d); e que os discentes compreenderam o comportamento dos seus parâmetros a, b, c e d. O estudo tem como principal contribuição, a conexão realizada pelos estudantes entre o conteúdo de funções trigonométricas e o cotidiano, através de sua aplicação na previsão de fenômenos periódicos (altura da maré e fases lunares), entendendo ainda a importância deste assunto para outras áreas do conhecimento, como física, astronomia, biologia e medicina, obtendo assim, uma Aprendizagem Significativa.
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6

Campos, Guadalupe Do Nascimento, Marcus Granato, Antonieta Middea, and Ricardo Tadeu Lopes. "ARQUEOMETRIA APLICADA À CONSERVAÇÃO DO PATRIMÔNIO ARQUEOLÓGICO METÁLICO: UM ESTUDO DE CASO DO SÍTIO FUNERÁRIO DE SÃO GONÇALO GARCIA, RIO DE JANEIRO." Cadernos do LEPAARQ (UFPEL) 15, no. 30 (November 30, 2018): 290. http://dx.doi.org/10.15210/lepaarq.v15i30.13620.

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O presente trabalho apresenta alguns dos resultados obtidos no âmbito do projeto de pesquisa Conservação e Caracterização Microanalítica de Objetos Arqueológicos Metálicos, desenvolvido no Museu de Astronomia e Ciências Afins - MAST. O projeto tem como objetivo principal estabelecer metodologias de caracterização e conservação do patrimônio arqueológico metálico. Os artefatos selecionados para o estudo de caso são provenientes do Sítio Funerário da Igreja São Gonçalo Garcia (região central do Rio de Janeiro), relacionados aos séculos XVIII e XIX. Para os exames arqueométricos, foram empregadas as seguintes técnicas de caracterização: radiografia digital e microtomografia computadorizada de raios X, microscopias estereoscópica e eletrônica de varredura, espectroscopia de energia dispersiva (MEV/EDS) e difratometria de raios X. Foram obtidas informações sobre a composição dos artefatos (fase metálica e alguns produtos de corrosão), detalhes da morfologia em 3D não visíveis a olho nu, extensão da mineralização, dentre outros aspectos. Abstract: This paper presents some of the achieved results in the "Microanalytical Conservation and Characterization of Metallic Archaeological Objects" research project, developed at the Museum of Astronomy and Related Sciences - MAST. The project's main goal is to establish methodologies for characterization and conservation of the metallic archaeological heritage. The artifacts selected for the case study are from the Funeral Site at São Gonçalo Garcia's Church (Rio de Janeiro's central region), related to the 18th and 19th centuries. For the archaeometric examinations, the following characterization techniques were employed: digital radiography and X ray microtomography, stereoscopic and scanning electron microscopy, energy-dispersive X ray spectroscopy (SEM / EDS) and X ray diffraction. Results were obtained about the artifacts's composition (metallic phase and some corrosion products), 3D morphology details invisible to the naked eye, and the extent of the mineralization, among other aspects.
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LIPPI, DONATELLA. "ASTRONOMIA B. STEPHENSON, M. BOLT, A. F. FRIEDMAN, The universe unveiled. Instruments and Images through History, Cambridge, Cambridge Univ. Press 2000, 152 pp., (ISBN 0-521-79143-X)." Nuncius 16, no. 1 (January 1, 2001): 447–48. http://dx.doi.org/10.1163/221058701x00301.

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8

Ivorra, Adolfo. "Manlio SODI (ed.), Astronomia e culto. Risposta a domande di attualità, Padova: Edizioni Messaggero Padova («Instant book»), 2009, 151 pp., 11 x 17, ISBN 978-88-250-2145-5." Scripta Theologica 43, no. 1 (November 10, 2015): 243. http://dx.doi.org/10.15581/006.43.3336.

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9

Lemoine, Martin, and Guy Perrin. "Les X astronomes." Bulletin de la Sabix, no. 35 (January 1, 2004): 44–49. http://dx.doi.org/10.4000/sabix.443.

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10

Palhares, Dario, and Íris Almeida dos Santos. "Astronomic Bioethics: Terraforming X Planetary protection." Bangladesh Journal of Bioethics 8, no. 2 (November 3, 2017): 1–10. http://dx.doi.org/10.3329/bioethics.v8i2.34474.

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A hard difficulty in Astrobiology is the precise definition of what life is. All living beings have a cellular structure, so it is not possible to have a broader concept of life hence the search for extraterrestrial life is restricted to extraterrestrial cells. Earth is an astronomical rarity because it is difficult for a planet to present liquid water on the surface. Two antagonistic bioethical principles arise: planetary protection and terraforming. Planetary protection is based on the fear of interplanetary cross-infection and possible ecological damages caused by alien living beings. Terraforming is the intention of modifying the environmental conditions of the neighbouring planets in such a way that human colonisation would be possible. The synthesis of this antagonism is ecopoiesis, a concept related to the creation of new ecosystems in other planets. Since all the multicellular biodiversity requires oxygen to survive, only extremophile microorganisms could survive in other planets. So, it could be carried out a simulation of a meteorite by taking to other planets portions of the terrestrial permafrost, or ocean or soil, so that if a single species could grow, a new ecosystem would start, as well as a new Natural History. As a conclusion, ecopoiesis should be the bioethical principle to guide practices and research in Astrobiology.
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11

Izquierdo Benito, Ricardo. "Alfonso X: un rey ante la historia." Vínculos de Historia Revista del Departamento de Historia de la Universidad de Castilla-La Mancha, no. 11 (June 22, 2022): 533–47. http://dx.doi.org/10.18239/vdh_2022.11.26.

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RESUMENEl año 2021 se ha cumplido el VIII centenario del nacimiento del rey Alfonso X, acontecimiento que tuvo lugar en la ciudad de Toledo el 23 de noviembre de 1221. Nos encontramos ante la figura de uno de los reyes medievales hispanos de mayor relevancia, tanto por las ideas políticas innovadoras que intentó aplicar, aunque no lo consiguió, como, sobre todo, por la gran actividad intelectual que bajo su patronazgo se llevó entonces a cabo y que le ha merecido el apelativo de Sabio como es conocido. Son muchos los historiadores que, desde distintas ópticas (el Arte, el Derecho, la Astronomía, la Música, la Literatura, etcétera) se han acercado a su figura, lo que ha repercutido en que contemos con una bibliografía muy numerosa y de una gran variedad temática. Palabras clave: Historiografía, Imperio alemán, Partidas, Cantigas, Toledo.Topografía: Castilla y León.Periodo: siglo XIII ABSTRACTThe year 2021 has been the eighth centenary of the birth of King Alfonso X, an event that took place in the city of Toledo on November 21, 1221. We are faced with the figure of one of the most important Hispanic medieval kings both for the innovative political ideas that he tried to apply, although he did not succeed, as, above all, because of the great intellectual activity that took place under his patronage then and that has earned him the nickname of Wise as he is known. There are many historians who, from different perspectives (Art, Law, Astronomy, Music, Literature, etc.) have approached his figure, which has resulted in our having a very numerous bibliography and a great thematic variety. Keywords: Historiography, German Empire, Partidas, Cantigas, ToledoToponyms: Castilla y LeónPeriod: 13th century REFERENCIASÁlvarez Martínez, R. (1987), “Los instrumentos musicales en los códices alfonsinos: su tipología, su uso y su origen”, Revista de Musicología, 10/1, pp. 67-104.Ayala Martínez, C. de (2016), “El levantamiento de 1264: factores explicativos y desarrollo, en M. González Jiménez y R. Sánchez Saus (eds.), Arcos y el nacimiento de la frontera andaluza (1264-1330), Sevilla, Editorial UCA-Editorial Universidad de Sevilla, pp. 59-98.Ballesteros Beretta, A. (1935), El itinerario de Alfonso el Sabio, Madrid, Tipografía de Archivos Olózaga, I.— (1918), “Alfonso X, emperador electo de Alemania, Discurso de recepción de la Real Academia de la Historia, LXXII, Madrid.— (1959), La reconquista de Murcia por el infante don Alfonso de Castilla, Murcia.— (1934a), “Itinerario de Alfonso X, rey de Castilla”, Boletín de la Real Academia de la Historia, CIV, pp. 49-88, 455-516.— (1934b), “Itinerario de Alfonso X, rey de Castilla”, Boletín de la Real Academia de la Historia, CV, 1934, pp. 123-180.— (1963), Alfonso X el Sabio. Barcelona, Salvat Editores.— (1984), Alfonso X el Sabio, Barcelona, El Albir.Benito Ruano, E. (1989), “Alfonso X el Sabio y la ciudad de Toledo”, Alfonso X el Sabio, vida, obra y época, Madrid, Sociedad Española de Estudios Medievales, pp. 251-257.Chabás, J. y B. R. Goldstein (2008), Las tablas alfonsíes de Toledo, Toledo. Diputación Provincial.Craddock, J. R. (1974), “La nota cronológica inserta en el prólogo de las Siete Partidas”, Al-Andalus, 39, pp. 363-389.— (1981), “La cronología de las obras legislativas de Alfonso X el Sabio”, Anuario de Historia del Derecho Español, XLI, pp. 365-418.— (1986), “El Setenario: última e inconclusa refundición de la Primera Partida”, Anuario de Historia del Derecho Español, LVI, pp. 441-466.— (1990), “The Legislative Works of Alfonso el Sabio”, en R. I. Burns (ed.), Emperor of Culture: Alfonso X the Learned of Castile and His Thirteenth-Century Renaissance, Filadelfia, University of Pennsylvania Press, pp. 182-197.— (1998), “El texto del Espéculo”, Initium, 3, pp. 221-274.Domínguez Rodríguez, A. (1984), Astrología y arte en el Lapidario de Alfonso X el Sabio, Madrid, Edilán.— (1997), “Retratos de Alfonso X en sus manuscritos”, en Alfonso X el Sabio impulsor del arte, la cultura y el humanismo. El arpa en la Edad Media española. Madrid, Asociación Arpista Ludovico, pp. 95-107.— (2008-2009), “Retratos de Alfonso X el Sabio en la Primera Partida (British Library, Add. ms. 20.787). Iconografía y cronología”, Alcanate. Revista de estudios alfonsíes, VI, pp. 239-251.— (2010-2011), “Retratos de Alfonso X en el Libro de los Juegos de Ajedrez, Dados y Tablas”, Alcanate. Revista de estudios alfonsíes, VII, pp. 147-162.Estepa Díaz, C. (1997), “Alfonso X en la Europa del siglo XIII”, en M. Rodríguez Llopis (coord.), Alfonso X. Aportaciones de un rey castellano a la construcción de Europa, Murcia, pp. 11-30.Farré Olivé, E. (1997), “El libro de los relojes de Alfonso X el Sabio”, Arte y Hora, 124, pp. 4-10.Fernández Fernández, L. (2013), Arte y ciencia en el scriptorium de Alfonso X el Sabio, Puerto de Santa María, Cátedra Alfonso X el Sabio y Universidad de Sevilla.— (2010), “Transmisión del Saber-Transmisión del Poder. La imagen de Alfonso X en la Estoria de España, Ms. Y-I-2 RBME”, Anales de Historia del Arte, volumen extraordinario, pp. 187-210.— (2010-2011), “El Ms. 8322 de la Bibliothèque de l’Arsenal y su relación con las tablas alfonsíes. Hipótesis de trabajo”, Alcanate. Revista de Estudios alfonsíes, 7, pp. 235-267.Fernández Fernández, L. y Ruiz Souza, J. C. (coords.) (2011), Las Cantigas de Santa María. Códice Rico, Ms. T-I-1, Real Biblioteca del Monasterio de San Lorenzo del Escorial, Madrid, Patrimonio Nacional-Testimonio, 2 vols.Fernández-Ordóñez, I, (2011), “La lengua de los documentos del rey: del latín a las lenguas vernáculas en las cancillerías regias de la Península Ibérica”, en P. Martínez Sopena y A. Rodríguez López (eds.), La construcción medieval de la memoria regia, Valencia, Publicaciones Universidad de Valencia, pp. 325-363.— (1992), Las “Estorias” de Alfonso el Sabio, Madrid, Istmo.— (1993), “Versión crítica” de la “Estoria de España”: estudio y edición desde Pelayo hasta Ordoño II, Madrid, Seminario Menéndez Pidal, Fundación Ramón Menéndez Pidal y Universidad Autónoma de Madrid.— (1999), “El taller historiográfico alfonsí. La Estoria de España y la General estoria en el marco de las obras promovidas por Alfonso el Sabio”, en J. Montoya Martínez y A. Domínguez Rodríguez (coords.), El Scriptorium alfonsí: de los libros de astrología a las ‘Cantigas de Santa María’, Madrid, Editorial Complutense, pp. 105-126.— (2001), “El taller de las Estorias”, en I. Fernández-Ordóñez (ed.), Alfonso X el Sabio y las Crónicas de España. Valladolid, Universidad de Valladolid. Centro para la Edición de los Clásicos Españoles, pp. 61-82.Fidalgo Francisco, E. (2012/13), “La gestación de las Cantigas de Santa María en el contexto de la escuela poética gallego-portuguesa”, Alcanate. Revista de Estudios alfonsíes, 8, pp. 17-42.— (2019), “Viejos, viejas y alcahuetas. Consideraciones acerca de la vejez en las Cantigas de Santa María”, en E. Muñoz Raya y E. Nogueras Valdivieso (eds.), Et era muy acuçioso en allegar el saber: studia philologica in honorem Juan Paredes, pp. 323-338.Forcada, M. (1990), “El Picatrix, fuente del Lapidario”, en M. Comes, H. Mielgo y J. Samsó (eds.), ‘Ochava espera’ y ‘Astrofísica’. Textos y estudios sobre las fuentes árabes de astronomía de Alfonso X. Barcelona, Agencia Española de Cooperación Internacional-Instituto de Cooperación con el mundo árabe, Universidad de Barcelona, pp. 209-220.García Avilés, A. (1997), “La obra astromágica de Alfonso X y su difusión en la Europa bajomedieval”, en M. Rodríguez Llopis (coord.), Alfonso X. Aportaciones de un rey castellano a la construcción de Europa, Murcia, pp. 135-172.García-Gallo, A. (1951-1952), “El Libro de las leyes de Alfonso el Sabio. Del Espéculo a las Partidas”, Anuario de Historia del Derecho Español, XXI-XXII, pp. 345-528.Georges, M. (2006), “De nuevo sobre la fecha del Setenario”, e-Spania, 2. http://journals.openedition.org/e-spania/381. (Consultado: 09-10-2021)González Jiménez, M. (2004), Alfonso X el Sabio, Barcelona, Ariel.— (2006-2007), “La corte de Alfonso X”, Alcanate. Revista de Estudios Alfonsíes, V, pp. 13-30.— (2008), La repoblación del reino de Sevilla en el siglo XIII, Granada, Editorial Universidad de Granada/Publicaciones Universidad de Sevilla.— (2009), “La repoblación del ámbito gaditano en el siglo XIII”, Revista de historia de Jerez, 14/15, pp. 123-131.— (2011), “Jaime I el Conquistador y Alfonso X el Sabio: una compleja relación de encuentros y desencuentros”, Jaume I. Conmemoració del VIII centenari del naixement de Jaume. I, Vol. I, Barcelona, Institut d'Estudis Catalans, pp. 437-454.— (2012), “La repoblación de Andalucía: Inmigrantes y repoblación”, Cuadernos e Historia de España, LXXXV-LVXXXVI, Homenaje a María Estela González de Fauve, Buenos Aires, pp. 296-302.— (2013), “A fronteira entre Portugal e Castela no século XIII”, en Comendas das Ordens Miliutares: Perfil nacional e inserçao internacional, Porto, Fronteira de caos Editores, pp. 125-133.— (2014), Los repartimientos de Vejer de la Frontera (1288-1318), Vejer de la Frontera, Sociedad Económica de Amigos del País.— (2016), “La Sevilla de Alfonso X”, en A. Rodríguez Babío (coord.), Santa Ana de Triana. Aparato histórico-artístico, Sevilla, Fundación Cajasol, pp. 21-25.— (2021), “Alfonso X Emperador de España. La frustración de un proyecto irrealizable”, Andalucía en la Historia, julio, pp. 16-19.González Jiménez, M. y Carmona Ruiz, M. A. (2012), Documentación e itinerario de Alfonso X el Sabio. Sevilla, Universidad de Sevilla.González Mínguez, C. (1997), “A propósito del desarrollo urbano del País Vasco durante el reinado de Alfonso X”, Anuario de Estudios Medievales, 27, pp. 289-214.Guilty, G. (ed.) (1954), Libro conplido en los iudizios de las estrellas, Real Academia Española, Madrid.Haro Cortés, M. (2016), “Semblanza iconográfica de la realeza sapiencial de Alfonso X: las miniaturas liminares de los códices regios”, Revista de poética medieval, 30, pp. 131-153.Hernández Pérez, A. (2018a), Astrolabios en al-Andalus y los reinos medievales hispanos, Madrid, La Ergástula.— (2018b), Catálogo razonado de los astrolabios de la España medieval, Madrid, La Ergástula.Herriott, J. H. (1938), “A Thirteenth-Century Manuscript of the Primera Partida”, Speculum, 13 (3), pp. 278–294.Ibáñez de Segovia, G. (1777), Memorias Históricas del Rei D. Alonso el Sabio i observaciones a su Chrónica, Madrid.Iglesia Ferreirós, A. (1986), “La labor legislativa de Alfonso X el Sabio”, en A. Pérez Martín (ed.), España y Europa, un pasado jurídico común, Murcia, Universidad de Murcia, pp. 275-599.Iturmendi Morales, J. (1972), “En torno a la idea del Imperio de Alfonso X el Sabio”, Revista de Estudios Políticos, 182, pp. 83-158.Klein, J. (1918), “Los privilegios de la Mesta de 1273 y 1276”, Boletín de la Real Academia de la Historia, LXIV, pp. 191-207.Kleine, M. (2015), La cancillería real de Alfonso X. actores y prácticas en la producción documental, El Puerto de Santa María.Lacomba, M. (2011), “Les prologues scientifiques alphonsins et la symbolique du miroir”, en G. Founès y E. Canonica (eds.), Le Miroir du Prince. Écriture, transmission et réception en Espagne (XIIIe-XVIe siècles), Burdeos, Presses Universitaires de Bordeaux, pp. 113-129.Ladero Quesada, M. A. (1993), Fiscalidad y poder real en Castilla. 1252-1369, Madrid, Universidad Complutense.— (1997), “Las reformas fiscales y monetarias de Alfonso X como base del “Estado Moderno”, en M. Rodríguez Llopis (coord.), Alfonso X. Aportaciones de un rey castellano a la construcción de Europa, Murcia, pp.31-54.Lapesa, R, (1980), “Símbolos y palabras en el Setenario de Alfonso X”, Nueva revista de filología hispánica, 29, pp. 247-261,MacDonald, R. A. (1986), “El Espéculo atribuido a Alfonso X, su edición y problemas que plantea”, en A. Pérez Martín (ed.), España y Europa, un pasado jurídico común, Murcia, Universidad de Murcia, pp. 611-653.Mariana, J. de (1592), Historia de Rebus Hispaniae Libri XX, Toledo.Márquez Villanueva, F. (2004), El concepto cultural alfonsí. Edición revisada y aumentada, Barcelona, Ediciones Bellaterra.Martin, G. (1993-1994), “Alphonse X ou la science politique. Septénaire 1-11”, Cahiers de linguistique hispanique médiévale, 18-19, pp. 79-100.— (1995), “Alphonse X ou la science politique. Septénaire 1-11”, Cahiers de linguistique hispanique médiévale, 20, pp. 7-33.— (2000), “Alphonse X de Castille. Roi et empereur. Commentaire du premier titre de la Deuxième Partie”, Cahiers de linguistique hispanique médiévale, 23, pp. 323‒348.Martínez Díez, G. (1985), Leyes de Alfonso X, I. Espéculo. Ávila.Martínez, H. S. (2003), Alfonso X, el Sabio. Una biografía. Madrid, Polifemo.Menéndez Pidal, G. (1986), La España del siglo XIII: leída en imágenes, Madrid, Real Academia de la Historia, 1986.Mingo Lorente, A. de (2021), Alfonso X el Sabio. El primer gran rey, Madrid, La Esfera de los libros.North, J. D. (1997), “The Alfonsine Tables in England”, en Y. Maeyama y W.G. Saltzer (eds.), Wiesbaden, Prismata. Festschrift für Willy Hartner, pp. 269-301.O’Callaghan, J. (1971), “The Cortes and Royal taxation during the reign of Alfonso X of Castile”, Traditio, XXVII, pp. 379-398.O’Callaghan, J. E. (1996), El rey sabio. El reinado de Alfonso X de Castilla. Sevilla, Universidad de Sevilla.O’Callaghan, J. F. (2019), Alfonso X, the Justinian of his age. Law and justice in thirteenth-century Castile, Nueva York-Londres, Ithaca, Cornell University Press.Orfali, M. (1985), “Los traductores judíos de Toledo: nexo entre oriente y occidente”, en Actas del II Congreso Internacional Encuentro de las Tres Culturas, Toledo, pp. 253-260;Panateri, D. (2015), “El prólogo de las Siete partidas. Entropía, edición y uso político”, Medievalia, 47, pp. 54-81.Panateri, D. (2015), “Las imágenes del rey y del emperador en Las Siete Partidas y la glosa de Gregorio López”, Cuadernos de Historia del Derecho, 22, pp. 215-255.Pérez Embid, F. (1969), “La Marina real castellana en el siglo XIII”, Anuario de Estudios Medievales, 6, pp. 141-186.Pérez Martín, A, (1984), “El Fuero Real y Murcia”, Anuario de Historia del Derecho Español, 54, pp. 55-96.— (1997), “Hacia un Derecho Común Europeo: la obra jurídica de Alfonso X”, en M. Rodríguez Llopis (coord.), Alfonso X. Aportaciones de un rey castellano a la construcción de Europa, Murcia, pp. 109-134.Pingree, D. (1986), Picatrix. The Latin Version of the Ghayāt al-Ḥakīm, London, Warburg Institute.Poulle, E. (1987), “Les Tables Alphonsines sont-elles d’Alphonse X?”, en M. Comes, R. Puig y J. Samsó (eds.), De Astronomia Alphonsi Regis. Actas del Simposio sobre Astronomía Alfonsí celebrado en Berkeley, agosto 1985, Barcelona, Instituto MillásRodríguez García, J. M. (2014), La cruzada en tiempos de Alfonso X, Madrid.Rodríguez Montalvo, S. (1981), Alfonso X: Lapidario (según el manuscrito escurialense H.1.15), Madrid, Gredos.Rodríguez Velasco, J. (2010), “La urgente presencia de Las Siete Partidas”, La Corónica, 38.2, pp. 97-134. Romano, D. (1996), “Los hispanojudíos en la traducción y redacción de las obras científicas alfonsíes”, La Escuela de Traductores de Toledo, Toledo, pp. 35-50.Ruiz de la Peña Solar, J. I. (1981), Las "Polas" asturianas en la Edad Media, Oviedo, Universidad de Oviedo.Ruiz Gómez, F. (1986), “La carta puebla de Ciudad Real (1255). Comentario histórico-jurídico”, en Alfonso X y Ciudad Real, Ciudad Real, pp. 35-56.Sáenz-Badillos, A. (1996), “Participación de judíos en las traducciones de Toledo”, en La Escuela de Traductores de Toledo, Toledo, pp. 65-70.Samsó, J. (1983), “La primitiva versión árabe del Libro de las Cruces”, en J. Vernet (ed.), Nuevos Estudios sobre Astronomía Española en el siglo de Alfonso X, Madrid, CSIC, pp. 149-161.— (1987b), “Sobre el tratado de la azafea y de la lámina universal. Intervención de los colaboradores alfonsíes”, Al-Qantara, 8, pp. 29-43.— (2008-2009), “Las traducciones astronómicas alfonsíes y la aparición de una prosa científica castellana”, Alcanate. Revista de Estudios Alfonsíes, 6, pp. 39-51.Sánchez Pérez, J. A. (antes de 1936), Alfonso X el Sabio. Siglo XIII, Madrid, M. Aguilar editor.Schoen, W. F. von (1966), Alfonso X de Castilla, Madrid, Ed. Rialp.Solalinde, A. G. (1915), “Intervención de Alfonso X en la redacción de sus obras”, Revista de Filología Española, 2, pp. 283-288.Steiger, A. (1946), “Alfonso X el Sabio y la idea imperial”, Arbor, 18, pp. 391-402.Torres Fontes, J. (1960), Repartimiento de Murcia, CSIC, Madrid.— (1963), “Presencia de Alfonso X el Sabio”, Anales de la Universidad de Murcia. Filosofía y Letras, 21 núms. 3 y 4, pp. 37-45.— (1977), Repartimiento de Lorca, Academia Alfonso X el Sabio, Murcia.— (1987), La reconquista de Murcia en 1266 por Jaime I de Aragón, CSIC, Madrid.— (1988), Repartimiento de Orihuela, CSIC, Madrid.Torroja Menéndez, J. M. (1984), “La obra astronómica de Alfonso X el Sabio”, en Conmemoración del centenario de Alfonso X el Sabio en la Real Academia de Ciencias Exactas, Físicas y Naturales, Madrid, Instituto de Astronomía y Geodésica (CSIC-UCM), pp. 33-47.Urteaga Artigas, M. M. (2006), “Censo de las villas nuevas medievales en Álava, Bizkaia y Gipuzkoa”, en P. Martínez Sopena y M. M. Urteaga Artigas (coords.), Las villas nuevas medievales del suroeste europeo. De la fundación medieval al siglo XXI: análisis histórico y lectura contemporánea, Boletín Arkeolan, 14, pp. 37-98Valdeón Baruque, J. (1986), Alfonso X el Sabio, Valladolid.— (1997), “Alfonso X y las Cortes de Castilla”, en M. Rodríguez Llopis (coord.), Alfonso X. Aportaciones de un rey castellano a la construcción de Europa, Murcia, pp. 55-70.— (2004-2005) “Alfonso X y el Imperio”, Alcanate. Revista de estudios alfonsíes, IV, pp. 243-255.— (2003), Alfonso X: la forja de la España moderna, Madrid, Temas de Hoy.Varios (1984), Alfonso X, catálogo de la exposición conmemorativa del VII centenario de la muerte de Alfonso X, Toledo. Ministerio de Cultura.Varios (1997), Alfonso X. aportaciones de un rey castellano a la construcción de Europa, Murcia. Región de MurciaVarios (2009), Alfonso X el Sabio, catálogo de la exposición, Mª T. López de Guereño Sanz e I. G. Bango Torviso (coords.), Murcia.Varios (2020), Alfonso el Sabio en el VIII centenario, Madrid, Instituto de España.Vernet, J. (1985), “Alfonso X y la astronomía árabe”, en J. Mondéjar y J. Montoya (eds.), Estudios Alfonsíes. Lexicografía, lírica, estética y política de Alfonso el Sabio, Granada, Universidad de Granada, pp. 17-31.
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12

Hart, Michael. "A novel astronomical X-ray polarimeter." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 316, no. 2-3 (June 1992): 416–21. http://dx.doi.org/10.1016/0168-9002(92)90929-x.

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Wolk, Scott J., and Bradley D. Spitzbart. "ANCHORS: an Archive of Chandra Observations of Regions of Star formation." Proceedings of the International Astronomical Union 2, no. 14 (August 2006): 587. http://dx.doi.org/10.1017/s1743921307011854.

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ANCHORS is a web based archive of all the point sources observed during Chandra observations of regions of star formation. It is designed to aid both the X-ray astronomer with a desire to compare X-ray datasets and the star formation astronomer wishing to compare stars across the spectrum. For some 50 Chandra fields, yielding 10000+ sources, the database contains X-ray source properties including position, net count rates, flux, hardness ratios, lightcurve statistics and plots.
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Diaz-Merced, Wanda L., Robert M. Candey, Nancy Brickhouse, Matthew Schneps, John C. Mannone, Stephen Brewster, and Katrien Kolenberg. "Sonification of Astronomical Data." Proceedings of the International Astronomical Union 7, S285 (September 2011): 133–36. http://dx.doi.org/10.1017/s1743921312000440.

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AbstractThis document presents Java-based software called xSonify that uses a sonification technique (the adaptation of sound to convey information) to promote discovery in astronomical data. The prototype is designed to analyze two-dimensional data, such as time-series data. We demonstrate the utility of the sonification technique with examples applied to X-ray astronomy and solar data. We have identified frequencies in the Chandra X-Ray observations of EX Hya, a cataclysmic variable of the intermediate polar type. In another example we study the impact of a major solar flare, with its associated coronal mass ejection (CME), on the solar wind plasma (in particular the solar wind between the Sun and the Earth), and the Earth's magnetosphere.
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15

Hanisch, Robert J., and George H. Jacoby. "Astronomical Data Analysis Software and Systems X." Publications of the Astronomical Society of the Pacific 113, no. 784 (June 2001): 772–73. http://dx.doi.org/10.1086/320803.

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Christensen, Finn E. "Test facility for astronomical x-ray optics." Optical Engineering 29, no. 8 (1990): 942. http://dx.doi.org/10.1117/12.55680.

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Pounds, K. A. "Astronomical X-ray spectroscopy—ten years on." Vistas in Astronomy 33 (January 1990): 83–103. http://dx.doi.org/10.1016/0083-6656(90)90039-b.

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HOLT, STEPHEN S. "New Frontiers in X-Ray Astronomical Spectroscopy." Annals of the New York Academy of Sciences 655, no. 1 Frontiers in (June 1992): 263–77. http://dx.doi.org/10.1111/j.1749-6632.1992.tb17076.x.

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19

Bannister, N. P., K. D. M. Harris, S. P. Collins, A. Martindale, P. S. Monks, G. Solan, and G. W. Fraser. "Dichroic Filters For Astronomical X-Ray Polarimetry." Experimental Astronomy 21, no. 1 (September 28, 2006): 1–12. http://dx.doi.org/10.1007/s10686-006-9054-1.

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Petre, R. "Thin Shell, Segmented X-Ray Mirrors." X-Ray Optics and Instrumentation 2010 (February 9, 2010): 1–16. http://dx.doi.org/10.1155/2010/412323.

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Thin foil mirrors were introduced as a means of achieving high throughput in an X-ray astronomical imaging system in applications for which high angular resolution was not necessary. Since their introduction, their high filling factor, modest mass, relative ease of construction, and modest cost have led to their use in numerous X-ray observatories, including the Broad Band X-ray Telescope, ASCA, and Suzaku. The introduction of key innovations, including epoxy replicated surfaces, multilayer coatings, and glass mirror substrates, has led to performance improvements and in their becoming widely used for X-ray astronomical imaging at energies above 10 keV. The use of glass substrates has also led to substantial improvement in angular resolution and thus their incorporation into the NASA concept for the International X-ray Observatory with a planned 3 m diameter aperture. This paper traces the development of foil mirrors from their inception in the 1970s through their current and anticipated future applications.
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Gregory, J. A., B. E. Burke, B. B. Kosicki, and R. K. Reich. "Developments in X-ray and astronomical CCD imagers." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 436, no. 1-2 (October 1999): 1–8. http://dx.doi.org/10.1016/s0168-9002(99)00592-6.

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Nakajima, Hiroshi. "Astronomical imaging with the X-ray observatory Hitomi." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 873 (November 2017): 16–20. http://dx.doi.org/10.1016/j.nima.2017.02.023.

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Sarra, P. F., and G. F. Bignami. "CCD astronomical applications for X-ray temporal studies." Experimental Astronomy 2, no. 6 (1992): 357–75. http://dx.doi.org/10.1007/bf00395986.

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24

Capitaine, N., and B. Guinot. "Astronomical Units and Constants in a Relativistic Framework." Highlights of Astronomy 10 (1995): 201. http://dx.doi.org/10.1017/s1539299600010972.

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In 1991, IAU Resolution A4 introduced General Relativity as the theoretical background for defining celestial space-time reference sytems. It is now essential that units and constants used in dynamical astronomy be defined in the same framework, at least in a manner which is compatible with the minimum degree of approximation of the metrics given in Resolution A4.This resolution states that astronomical constants and quantities should be expressed in SI units, but does not consider the use of astronomical units. We should first evaluate the usefulness of maintaining the system of astronomical units. If this system is kept, it must be defined in the spirit of Resolution A4. According to Huang T.-Y., Han C.-H., Yi Z.-H., Xu B.-X. (What is the astronomical unit of length?, to be published in Asttron. Astrophys.), the astronomical units for time and length are units for proper quantities and are therefore proper quantities. We fully concur with this point of view. Astronomical units are used to establish the system of graduation of coordinates which appear in ephemerides: the graduation units are not, properly speaking astronomical units. Astronomical constants, expressed in SI or astronomical units, are also proper quantities.
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25

Samsó, Julio. "Ibn Isḥāq and the Alfonsine Tables." Journal for the History of Astronomy 50, no. 3 (August 2019): 360–65. http://dx.doi.org/10.1177/0021828619829242.

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This paper seeks to show that astronomical tables ( zījes) belonging to the tradition of Ibn Isḥāq al-Tunisī (fl. 1193–1222) were available to the astronomers in the service of King Alfonso X (r. 1252–1284), who used them both in their astronomical works written in Castilian and for the production of the Parisian Alfonsine Tables which are, nowadays, extant in Latin.
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Watarai, H., K. Misaki, Y. Terashima, and T. Nakagawa. "ASCA Observations of Luminous Infrared Starburst Galaxies." Symposium - International Astronomical Union 186 (1999): 287. http://dx.doi.org/10.1017/s0074180900112847.

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We present recent results of X-ray observations of two luminous infrared galaxies, NGC3690+IC694 (Arp299) and NGC1614 obtained by the Japanese X-ray astronomical satellite ASCA. Both galaxies have quite high infrared luminosity (> 1011L⊙) and strong evidence of merger.
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27

Weisskopf, M. C. "The Advanced X-Ray Astrophysics Facility." International Astronomical Union Colloquium 123 (1990): 71–79. http://dx.doi.org/10.1017/s0252921100076922.

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AbstractThe Advanced X-Ray Astrophysics Facility (AXAF) is a remarkable and unique scientific endeavor. It will be a space-based earth orbiting X-ray observatory, designed to address fundamental questions in astronomy and astrophysics. It is remarkable in that it represents enormous advances in observational capability. It is unique in that it will be the best means of obtaining high resolution, spectrally resolved X-ray images of astronomical objects for the rest of this century and beyond.
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28

Weisskopf, Martin. "An Overview of X-Ray Polarimetry of Astronomical Sources." Galaxies 6, no. 1 (March 6, 2018): 33. http://dx.doi.org/10.3390/galaxies6010033.

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Marin, Frédéric. "The Growth of Interest in Astronomical X-Ray Polarimetry." Galaxies 6, no. 1 (March 19, 2018): 38. http://dx.doi.org/10.3390/galaxies6010038.

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30

La Monaca, A., E. Costa, P. Soffitta, G. Di Persio, M. Manzan, B. Martino, G. Patria, G. Cappuccio, and N. Zema. "A new photoelectron imager for X-ray astronomical polarimetry." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 416, no. 2-3 (November 1998): 267–77. http://dx.doi.org/10.1016/s0168-9002(98)00486-0.

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31

Ziaeepour, H., and S. Rosen. "Statistical algorithms for identification of astronomical X-ray sources." Astronomische Nachrichten 329, no. 1 (January 2008): 84–105. http://dx.doi.org/10.1002/asna.200610821.

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32

Green, Paul J., Martin Ward, Scott F. Anderson, Bruce Margon, M. H. K. Degrijp, and George K. Miley. "Infrared-Selected “Warm” Galaxies Observed in X-rays." Symposium - International Astronomical Union 134 (1989): 420–21. http://dx.doi.org/10.1017/s0074180900141567.

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The Infrared Astronomical Satellite (IRAS) has detected many galaxies in the infrared (IR), most of which have fairly steep 25μ to 60μ spectra. Many quasars and active galaxies exhibit a significantly flatter spectrum in the infrared. Several studies, for example, DeGrijp et al. (1985) used this characteristic to select a subsample of “warm” objects from the IRAS PSC (1985).
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33

Kaneda, H., T. Onaka, T. Kitayama, Y. Okada, and I. Sakon. "Mid- and Far-Infrared Study of X-ray-emitting Dusty Elliptical Galaxies." Proceedings of the International Astronomical Union 2, S235 (August 2006): 211. http://dx.doi.org/10.1017/s174392130600617x.

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34

Owens, Alan, Michael Denby, Alan Wells, Adam Keay, Dale E. Graessle, and Richard L. Blake. "The Effect of X‐Ray Absorption Fine Structure in Soft X‐Ray Astronomical Telescopes." Astrophysical Journal 476, no. 2 (February 20, 1997): 924–31. http://dx.doi.org/10.1086/303628.

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35

Hughes, David. "Astronomical affairs." New Scientist 194, no. 2601 (April 2007): 50. http://dx.doi.org/10.1016/s0262-4079(07)61077-x.

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36

Boutsikas, Efrosyni. "“Road to the Stars” Oxford XI." Journal of Skyscape Archaeology 4, no. 1 (August 3, 2018): 134–37. http://dx.doi.org/10.1558/jsa.36096.

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37

Khalil, M., M. Said, H. Osman, B. Ahmed, Dalia Ahmed, Naheel Younis, B. Maher, M. Osama, and M. Ashmawy. "Big data in astronomy: from evolution to revolution." International Journal of Advanced Astronomy 7, no. 1 (May 5, 2019): 11. http://dx.doi.org/10.14419/ijaa.v7i1.18029.

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Big data is pushing astronomy in a new direction. Massive amounts of astronomical big data produced by the new generations of powerful instruments and simulations are exponentially gathered every day. Big data like astronomical images, infrared, microwave, ultraviolet, X-rays and gamma generated by stars, galaxies and black holes are observed by the new generations of space telescopes. It may take years to uncover the hidden signals in such data that may already hold answers to some of the fundamental questions of the universe we’re seeking. In this paper, we attempt to present a short review about the astronomical big data and how can such massive data change our understanding of the universe.
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38

Podobedova, L. I., D. E. Kelleher, J. Reader, and W. L. Wiese. "Atomic Spectral Tables for the Chandra X-ray Observatory." Highlights of Astronomy 13 (2005): 657–61. http://dx.doi.org/10.1017/s1539299600016762.

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AbstractTables of wavelengths, line classifications, and transition probabilities have been critically compiled for ionized spectra of neon (Ne V-VIII), magnesium (Mg V-X), silicon (Si VI-XII), and sulfur (S VIII-XIV) in the 20 Å-170 Å region. The tables provide basic atomic data for about 3300 transitions in support of astronomical studies from the Chandra X-ray Observatory.
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39

Batty, Michael J., R. G. Gardyne, G. J. Gay, S. Gulkis, David L. Jauncey, A. Kirk, and W. L. Peters. "An ‘X-Banded’ Tidbinbilla Interferometer." Publications of the Astronomical Society of Australia 6, no. 3 (1986): 351–53. http://dx.doi.org/10.1017/s1323358000027053.

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AbstractThe recent upgrading of the Tidbinbilla two-element interferometer to simultaneous S-band (2.3 GHz) and X-band (8.4 GHz) operation has provided a powerful new astronomical facility for weak radio source measurement in the Southern Hemisphere. The new X-band system has a minimum fringe spacing of 38 arcsec, and about the same positional measurement capability (approximately 2 arcsec) and sensitivity (1 s rms noise of 10 mJy) as the previous S-band system. However, the far lower confusion limit will allow detection and accurate positional measurements for sources as weak as a few millijanskys. This capability will be invaluable for observations of radio stars, X-ray sources and other weak, compact radio sources.
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40

Battistini, P. "Astronomical Catalogues in the M 31 Region." Symposium - International Astronomical Union 126 (1988): 547–48. http://dx.doi.org/10.1017/s007418090004300x.

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In the course of work done in the Astronomy Department of Bologna University on “Search and Study of Globular Clusters in M 31”, a remarkable quantity of data in the literature concerning optical, X-ray and radio surveys in the field of Andromeda Galaxy has been accumulated.
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41

Hang, Heng-Rong, Zhi-Yun Zang, Shan-Zhao Liu, Gui-Qing Ma, I.-Zhong Gong, Takamasa Yamagami, and Michio Nakagawa. "Balloon X-ray Astronomical Observations: a China-Japan Collaborative Transoceanic Flight." Publications of the Astronomical Society of Australia 9, no. 1 (1991): 111–12. http://dx.doi.org/10.1017/s132335800002511x.

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42

Skinner, G. K., and T. J. Ponman. "Inverse problems in X-ray and gamma-ray astronomical imaging." Inverse Problems 11, no. 4 (August 1, 1995): 655–76. http://dx.doi.org/10.1088/0266-5611/11/4/004.

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43

Panini, Singam S. "Multilayer mirror-based soft x-ray polarimeter for astronomical observations." Journal of Astronomical Telescopes, Instruments, and Systems 4, no. 01 (October 4, 2017): 1. http://dx.doi.org/10.1117/1.jatis.4.1.011002.

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44

Mao, Peter H., Fiona A. Harrison, David L. Windt, and Finn E. Christensen. "Optimization of graded multilayer designs for astronomical x-ray telescopes." Applied Optics 38, no. 22 (August 1, 1999): 4766. http://dx.doi.org/10.1364/ao.38.004766.

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45

Owens, Alan, and Kieran J. McCarthy. "Tabulated responses of X-ray CCDs to optical astronomical sources." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 348, no. 1 (August 1994): 188–91. http://dx.doi.org/10.1016/0168-9002(94)90860-5.

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46

Belenkiy, Ari. "An astronomical murder?" Astronomy & Geophysics 51, no. 2 (March 22, 2010): 2.09–2.13. http://dx.doi.org/10.1111/j.1468-4004.2010.51209.x.

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47

Hannah, Robert. "John M. Steele, editor, 'The Circulation of Astronomical Knowledge in the Ancient World'." Journal of Skyscape Archaeology 4, no. 1 (August 3, 2018): 138–43. http://dx.doi.org/10.1558/jsa.36097.

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John M. Steele, editor, The Circulation of Astronomical Knowledge in the Ancient World, Leiden: Brill, 2016. Hardback 586 pp, illustrations x. ISBN: 978-90-04 31561-7; E-book: E-ISBN: 9789004315631. € 189 / $223 US.
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48

Blazek, Martin, Petr Pata, Adolf Inneman, and Petr Skala. "Astronomical Tasks for Tests of X-Ray Optics in VZLUSAT-1 Nanosatellite." Advances in Astronomy 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/3162892.

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VZLUSAT-1 nanosatellite (scheduled launch in spring 2017 from India) is a CubeSat mission which, besides other instrumentation, contains X-ray desk to perform efficiency tests of the X-ray optics. In this article the analysis of potential observational candidates for VZLUSAT-1 X-ray board is presented together with the suggestion of observational modes, laboratory measurements, and estimations of exposure settings.
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49

Yamashita, K., H. Kunieda, Y. Tawara, and K. Tamura. "Multilayer X-Ray Optics for Future Missions." Symposium - International Astronomical Union 188 (1998): 337–38. http://dx.doi.org/10.1017/s0074180900115426.

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Multilayers have a great potentiality to improve the image quality, spectral resolution and energy coverage of x-ray optical systems. The angular resolution of a normal incidence telescope aims at approaching the diffraction limit in the soft x-ray region. Multilayer supermirror makes it possible to fabricate a grazing incidence telescope with high sensitivity in hard x-ray region. Multilayer coated gratings are also useful dispersive elements with high efficiency and spectral resolution in the 2-10keV region. The application of multilayers is expected to open up a new field in astronomical imaging and spectroscopic observations which are not accessible by present telescopes.
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50

Israel, G. L., S. Covino, V. F. Polcaro, S. Campana, S. Mereghetti, A. Pizzella, P. Roche, L. Stella, and F. Verrecchia. "Searching for New Be/X-ray Binaries in the Galactic Plane: the Case of GS 0834 – 43, 1WGA J1958.2+3232 and AXJ1820.5–1434." International Astronomical Union Colloquium 175 (2000): 739–42. http://dx.doi.org/10.1017/s0252921100056876.

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AbstractOver the last year we obtained X-ray (ROSAT, BeppoSAX and ASCA) and optical (at ESO and at the Astronomical Observatory of Loiano) to infra-red (AAO) observations of a sample of newly discovered X-ray pulsars. Among this sample we discovered the likely optical counterpart of three of them located in the Galactic plane: GS 0834–43, 1WGA J1958.2+3232 and AX J1820.5–1434.
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