Добірка наукової літератури з теми "Galaxies primitives"
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Статті в журналах з теми "Galaxies primitives"
Heap, Sara R., I. Hubeny, J. C. Bouret, T. Lanz, and J. Brinchmann. "Properties of Primitive Galaxies." Proceedings of the International Astronomical Union 18, S361 (May 2022): 485–89. http://dx.doi.org/10.1017/s1743921322003246.
Повний текст джерелаThomsen, D. E. "Galaxies in a Primitive State?" Science News 133, no. 4 (January 23, 1988): 52. http://dx.doi.org/10.2307/3972612.
Повний текст джерелаFinkelstein, Steven L., James E. Rhoads, Sangeeta Malhotra, and Norman Grogin. "LYMAN ALPHA GALAXIES: PRIMITIVE, DUSTY, OR EVOLVED?" Astrophysical Journal 691, no. 1 (January 15, 2009): 465–81. http://dx.doi.org/10.1088/0004-637x/691/1/465.
Повний текст джерелаHeap, Sara R. "What can the UV SED tell us about primitive galaxies?" Proceedings of the International Astronomical Union 7, S284 (September 2011): 49–52. http://dx.doi.org/10.1017/s174392131200871x.
Повний текст джерелаFraix-Burnet, Didier, Mauro D’Onofrio, and Paola Marziani. "Maximum parsimony analysis of the effect of the environment on the evolution of galaxies." Astronomy & Astrophysics 630 (September 23, 2019): A63. http://dx.doi.org/10.1051/0004-6361/201935604.
Повний текст джерелаChen, Ke-Jung, Ching-Yao Tang, Daniel J. Whalen, Meng-Yuan Ho, Sung-Han Tsai, Po-Sheng Ou, and Masaomi Ono. "How Population III Supernovae Determined the Properties of the First Galaxies." Astrophysical Journal 964, no. 1 (March 1, 2024): 91. http://dx.doi.org/10.3847/1538-4357/ad2684.
Повний текст джерелаHeap, Sara. "Role of massive stars in the evolution of primitive galaxies." Proceedings of the International Astronomical Union 10, H16 (August 2012): 370. http://dx.doi.org/10.1017/s1743921314011429.
Повний текст джерелаGuimaraes, Eduardo S. "The Lunar Problem is The Barrier of The Future Time of The Earth." JOURNAL OF ADVANCES IN PHYSICS 14, no. 3 (September 27, 2018): 5873–916. http://dx.doi.org/10.24297/jap.v14i3.7802.
Повний текст джерелаBolatto, Alberto D., Adam K. Leroy, Erik Rosolowsky, Fabian Walter, and Leo Blitz. "The Resolved Properties of Extragalactic Giant Molecular Clouds." Proceedings of the International Astronomical Union 4, S255 (June 2008): 274–77. http://dx.doi.org/10.1017/s1743921308024939.
Повний текст джерелаAguerri, J. A. L., A. Longobardi, S. Zarattini, A. Kundert, E. D’Onghia, and L. Domínguez-Palmero. "Fossil group origins." Astronomy & Astrophysics 609 (January 2018): A48. http://dx.doi.org/10.1051/0004-6361/201731711.
Повний текст джерелаДисертації з теми "Galaxies primitives"
Lecroq, Marie. "Modelling primeval galaxies in the JWST era." Electronic Thesis or Diss., Sorbonne université, 2024. http://www.theses.fr/2024SORUS154.
Повний текст джерелаThe James Webb Space Telescope, launched in December 2021, is heralded as the major observatory of the coming decade. While it will explore all phases of cosmic history, one of its main scientific goals is to reveal the first stars and galaxies formed in the darkness of the early Universe, which led to its reionisation before evolving into the population of galaxies observable today. To interpret the spectroscopic data collected by JWST, it is necessary to develop models which can effectively constrain the physics of primeval-galaxy emission. This approach can be guided by observations of nearby galaxies with properties similar to those expected of primeval galaxies, i.e. extremely metal-poor and actively star-forming. Such galaxies in the local Universe exhibit surprisingly hard radiation fields, resulting notably in intense high-ionization emission lines, which cannot be fully explained by any existing model. Recent studies point to the essential role that massive binary stars could play in this emission.The aim of this thesis is to open up a new gap in the modelling of the emission from primeval galaxies, by exploring the spectral signatures of massive binary stars. To this end, I study the nebular emission of populations of young stars generated using the new GALSEVN model, combining the population synthesis code SEVN, which includes interactions between stars in binary systems, with the spectral evolution code GALAXEV. This approach confirms that interactions between stars in binary systems strongly influence the emission properties of young galaxies. In particular, I show that GALSEVN is able to account for the high HeII/Hb intensity ratios commonly observed in metal-poor galaxies with active stellar formation, which are difficult to reproduce with current models. I also demonstrate how successive bursts of star formation can improve agreement with observations, while the most extreme HeII spectral features can be reproduced by stellar populations dominated by massive stars. GALSEVN also makes it possible to evaluate the emission from accretion discs of X-ray binaries and radiative shocks from stellar winds and supernovae in an innovative way, using a self-consistent approach built from the characteristics of the modelled stellar populations. This work shows that these contributions likely have little effect on ratios such as HeII/Hb, contrary to predictions from other models, which appear to overestimate the X-ray luminosities of nearby galaxies relative to the observed mean luminosity function of X-ray binaries. GALSEVN can also predict the emission of extremely metal-poor stellar populations, representative of the first generations of stars in our Universe. A study of different parameters characterising the emission of these stars supports the view that the first stars may have played a major role in the reionization of the Universe and the subsequent formation of the structures observed today. Overall, the results presented in this thesis provide a solid basis for further investigation of the properties of early galaxies. By building a grid of models spanning a wide range of stellar and nebular properties, it is possible to apply statistical methods to interpret data collected by JWST in terms of constraints on the physical properties of the observed galaxies. In conclusion, this thesis has led to the development and publication of new models enabling a novel interpretation of the physical properties of galaxies whose emission is dominated by young stellar populations
Частини книг з теми "Galaxies primitives"
"Cosmogony Myths and Primitive Notions." In The Distribution of the Galaxies, 3–10. Cambridge University Press, 1999. http://dx.doi.org/10.1017/cbo9780511549526.003.
Повний текст джерелаТези доповідей конференцій з теми "Galaxies primitives"
Hayakawa, T., M. Kusakabe, H. Ko, M. K. Cheoun, G. J. Mathews, A. Tolstov, K. Nomoto, et al. "Neutrino process with primitive meteorites and high power laser." In 14TH INTERNATIONAL SYMPOSIUM ON ORIGIN OF MATTER AND EVOLUTION OF GALAXIES (OMEG 2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5030825.
Повний текст джерела