Academic literature on the topic 'Origin of the universe'
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Journal articles on the topic "Origin of the universe"
Turner, Michael S. "Origin of the Universe." Scientific American 301, no. 3 (September 2009): 36–43. http://dx.doi.org/10.1038/scientificamerican0909-36.
Full textNarlikar, Jayant V. "Origin(?) of the universe." Resonance 1, no. 7 (July 1996): 6–15. http://dx.doi.org/10.1007/bf02871059.
Full textTurner, Michael S. "Origin of the Universe." Scientific American 22, no. 2s (May 21, 2013): 36–43. http://dx.doi.org/10.1038/scientificamericanphysics0513-36.
Full textNarlikar, Jayant V. "Origin (?) of the universe." Resonance 1, no. 6 (June 1996): 8–21. http://dx.doi.org/10.1007/bf02834361.
Full textNarlikar, Jayant V. "Origin (?) of the Universe." Resonance 10, no. 12 (December 2005): 6–11. http://dx.doi.org/10.1007/bf02835122.
Full textNarlikar, Jayant V. "Origin (?) of the universe." Resonance 1, no. 3 (March 1996): 6–12. http://dx.doi.org/10.1007/bf02835617.
Full textNarlikar, Jayant V. "Origin (?) of the universe." Resonance 1, no. 2 (February 1996): 12–17. http://dx.doi.org/10.1007/bf02835694.
Full textNarlikar, Jayant V. "Origin(?) of the universe." Resonance 1, no. 4 (April 1996): 5–14. http://dx.doi.org/10.1007/bf02896192.
Full textNarlikar, Jayant V. "Origin (?) of the universe." Resonance 1, no. 1 (January 1996): 7–13. http://dx.doi.org/10.1007/bf02838852.
Full textCALOGERO, FRANCESCO. "COSMIC ORIGIN OF QUANTIZATION." International Journal of Modern Physics B 18, no. 04n05 (February 20, 2004): 519–25. http://dx.doi.org/10.1142/s0217979204024136.
Full textDissertations / Theses on the topic "Origin of the universe"
Khochfar, Sadegh. "Origin and properties of elliptical galaxies in a hierarchical universe." [S.l. : s.n.], 2003. http://deposit.ddb.de/cgi-bin/dokserv?idn=968331971.
Full textByrnes, Christian T. "Models of the early universe and the origin of structure." Thesis, University of Portsmouth, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.494146.
Full textKeefe, Martha L. (Martha Lundin). "Excuses for the Universe." Thesis, North Texas State University, 1985. https://digital.library.unt.edu/ark:/67531/metadc504600/.
Full textKnödlseder, Jürgen. "The origin of 26Al in the Galaxy." Phd thesis, Université Paul Sabatier - Toulouse III, 1997. http://tel.archives-ouvertes.fr/tel-00145359.
Full textmeasurements of the 1.809 MeV gamma-ray line arising from the decay of
radioactive 26Al.
The COMPTEL telescope aboard the Compton Gamma-Ray Observatory, launched on
April 5, 1991, permits for the first time an extensive investigation of the
1.8 MeV radiation throughout the entire sky.
The aim of this thesis is to infer the galactic distribution of 26Al from
these measurements and to identify the dominant sources of this
radioactive isotope.
The first part of the thesis is dedicated to the reconstruction of
the 1.8 MeV intensity distribution from the measured data.
It is demonstrated that the use of conventional deconvolution
algorithms, like maximum likelihood or maximum entropy inversion,
leads to lumpy, noise-dominated intensity distributions.
Nevertheless, simulations can help to assess the uncertainties in the
reconstructed images, which permits the scientific exploitation of the
recovered skymaps.
Alternatively, a multiresolution approach is proposed, which largely
reduces the uncertainties in the reconstructed 1.8 MeV intensity
distribution.
In summary, 1.8 MeV emission is mainly concentrated towards the
galactic plane, which clearly demonstrates that the bulk of 26Al is of
galactic rather than local origin.
However, distinct emission features towards Cygnus, Carina, and the
Auriga-Camelopardalis-Perseus region are inconsistent with a smooth
galactic 1.8 MeV emission profile, pointing towards a massive star
origin of 26Al.
The second part of the thesis consists of a multi-wavelength
comparison of COMPTEL 1.8 MeV data which aims in the
identification of the origin of galactic 26Al.
For the comparison, a rigorous Bayesian analysis is applied, which
is the only consistent framework that allows inference based on the
comparison.
It turned out that the 1.8 MeV distribution follows very closely
the distribution of free electrons in the Galaxy which is traced by
thermal bremsstrahlung, observable in the microwave domain.
The similarity of the 1.8 MeV intensity distribution to the
thermal bremsstrahlung distribution implies a direct proportionality
between the 26Al and the massive star column densities, which strongly
supports that massive stars are the origin of galactic 26Al.
In particular, ONeMg-novae and AGB stars can be excluded as dominant
26Al sources since their galactic distribution is not expected to
correlate with the distribution of free electrons.
The correlation between 26Al and free electrons established, the
analysis of 1.8 MeV gamma-ray line emission can complement our knowledge
about star formation and the distribution of ionized gas throughout
the entire Galaxy.
While COMPTEL made the first step in providing the first all-sky map
in the light of the 1.809 MeV line, INTEGRAL, the next generation gamma-ray spectrometer, will allow a detailed study of current star formation
in the Galaxy.
Wittor, Denis [Verfasser], and Marcus [Akademischer Betreuer] Brüggen. "Origin and Effects of the Non-Thermal Components in Large-Scale Structures of the Universe / Denis Wittor ; Betreuer: Marcus Brüggen." Hamburg : Staats- und Universitätsbibliothek Hamburg, 2018. http://d-nb.info/115107649X/34.
Full textGabici, Stefano. "Gamma ray astronomy and the origin of galactic cosmic rays." Habilitation à diriger des recherches, Université Paris-Diderot - Paris VII, 2011. http://tel.archives-ouvertes.fr/tel-00719791.
Full textMamberti, Marc. "Origin and evolution of two distinct Cretaceous oceanic plateaus accreted in Western Ecuador (South America) : Petrological, geochemical and isotopic evidence." Phd thesis, Université Joseph Fourier (Grenoble), 2001. http://tel.archives-ouvertes.fr/tel-00688387.
Full textDutra, Maíra. "Origins for dark matter particles : from the "WIMP miracle" to the "FIMP wonder"." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS059/document.
Full textFor more than eighty years, we face evidence that about 26% of the energy budget of the universe today is in the form of dark matter, whose interaction with ordinary matter is felt only gravitationally. Along with massive neutrinos, the existence of dark matter particles (DM) indicate that we must extend the standard model of particle physics (SM) in order to account for them. In this thesis, we explore the close relationship between the nature of couplings connecting DM to the SM sector and the production of the DM relic density in the Early Universe. We start by considering the most predictive class of DM candidates, the weakly interacting massive particles (WIMPs). Their masses and couplings are comparable to the SM ones, which ensure that both sectors were once in thermal equilibrium and automatically render the DM relic density within the inferred range -- the so-called "WIMP miracle". The current experimental bounds push the viable parameter space of WIMP models to complex corners, making necessary to add extra particles in the dark sector and to check the decoupling condition more carefully. After reviewing the phenomenological status of a comprehensive spectrum of models for WIMPs with masses in the range 10-10⁴ GeV, we consider the challenging phenomenology of an MeV DM in a Z' portal model. Besides seeking to improve the search for WIMPs, it is worth considering the case in which DM and SM interact so feebly that they had never reached equilibrium. Feebly interacting massive particles (FIMPs) are DM candidates produced from the SM thermal bath in out-of-equilibrium processes, a mechanism called freeze-in. We show that if heavy fields (10¹⁰-10¹⁶ GeV) mediate the DM-SM interactions, the freeze-in is a natural possibility that provide the right amount of DM in the universe without the need of extremely small gauge, yukawa or quartic couplings. Such heavy fields are actually needed in theoretically well motivated high-energy scenarios like for instance GUT, seesaw, leptogenesis and inflation -- we call this interesting coincidence the "FIMP wonder". We explore different realizations of such possibility, with models involving moduli, fermions, gauge bosons and spin-2 fields as heavy mediators. We finally show in which cases the DM production during reheating have impact on the parameter space of such models
Doucet, Luc Serge. "Origine et évolution du manteau cratonique de Sibérie." Phd thesis, Université Jean Monnet - Saint-Etienne, 2012. http://tel.archives-ouvertes.fr/tel-00976544.
Full textRevillon, Sidonie. "Origine et composition du plateau océanique Caraïbe." Phd thesis, Université Rennes 1, 1999. http://tel.archives-ouvertes.fr/tel-00145360.
Full textLa ride de Béata est formée de gabbros et de dolérites. Ces roches, comme celles de Curaçao, dérivent de liquides basaltiques et montrent des spectres de terres rares (TR) plats. Leur source est isotopiquement appauvrie. L'âge des roches de Béata suggère une longue histoire magmatique pour la formation du plateau en trois épisodes (90 Ma, 76 Ma et 55 Ma).
Toutes les roches plutoniques de Gorgona (gabbros, dunites et wehrlites) dérivent de liquides basaltiques montrant des spectres de TR plats ou appauvris en TR légères. Les picrites et les komatiites dérivent de liquides ultra-magnésiens appauvris ou très appauvris en TR légères. Les compositions isotopiques de Nd indiquent deux sources mantelliques : une appauvrie et une plus enrichie (epsilon Nd +10 et +6). La similitude des rapports d'éléments incompatibles et des compositions isotopiques suggère que certaines roches plutoniques dérivent par différenciation des liquides komatiitiques. Ces magmas se mettent ensuite en place dans des sills à faible profondeur.
Les conclusions principales sont :
(a) le système d'alimentation du plateau est complexe
(b) les liquides parents sont hétérogènes : ultra-magnésiens ou basaltiques, appauvris ou non en éléments incompatibles. La source comprend un composant enrichi et un composant appauvri.
(c) la tête du panache est zonée. Ceci est lié au processus de fusion partielle. Au cœur, de haute température, les liquides ultra-magnésiens se forment. Un processus de fusion fractionnée avancé permet de former des liquides très appauvris et l'échantillonnage du composant appauvri. Dans les bordures, plus froides, les liquides basaltiques se forment par des taux de fusion fractionnée moindres, ce qui favorise l'échantillonnage du composant enrichi. Ces liquides sont ensuite homogénéisés et acquièrent des signatures géochimiques uniformes.
Books on the topic "Origin of the universe"
Chadha, M. S. Life in the universe. 2nd ed. New Delhi: Publications & Information Directorate, 1995.
Find full textC, Dammann, and Pilolli R, eds. The origin of the universe. Apeldoorn: Wayti Publishing House Foundation, 2000.
Find full textThe origin of the universe. London: Weidenfeld & Nicholson, 1994.
Find full textBarrow, John D. The origin of the universe. New York: BasicBooks, 1994.
Find full textRuiz, Andrés Llamas. The origin of the universe. New York: Sterling Pub., 1997.
Find full textBennett, Jeffrey O. Life in the universe. 3rd ed. San Francisco: Pearson Addison-Wesley, 2012.
Find full textKolb, Edward W. Origin of density fluctuations in extended inflation. Batavia, Ill: Fermi National Accelerator Laboratory, 1990.
Find full textSlovi͡anskikh, V. K. Gravitational field: The origin of Universe. Moscow: Institute of General and Inorganic Chemistry, 1993.
Find full textKutter, G. Siegfried. Origin and evolution of the universe. Boston: Jones and Bartlett, 1989.
Find full textKutter, G. Siegfried. The universe and life: Origins and evolution. Boston: Jones and Bartlett, 1987.
Find full textBook chapters on the topic "Origin of the universe"
Kwok, Sun. "A Celestial Origin for Oil?" In Astronomers' Universe, 127–35. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32802-2_14.
Full textKwok, Sun. "Stardust and Origin of Life." In Astronomers' Universe, 189–99. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-32802-2_21.
Full textSchulze-Makuch, Dirk, and Louis N. Irwin. "Origin of Life." In Life in the Universe, 25–41. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-76817-3_3.
Full textSchulze-Makuch, Dirk, and Louis N. Irwin. "Origin of Life." In Life in the Universe, 27–50. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97658-7_3.
Full textStevenson, David S. "The Origin of Life on Earth." In Astronomers' Universe, 97–156. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-52911-0_3.
Full textSivathanu Pillai, A. "Origin of the Universe." In Introduction to Rocket Science and Space Exploration, 3–40. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003323396-2.
Full textMoore, Ben. "The Origin of Stars, Planets and Galaxies." In Astronomers' Universe, 57–69. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-05672-2_4.
Full textvan den Heuvel, Edward. "The Origin of the Matter in the Universe." In Astronomers' Universe, 161–70. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23543-1_10.
Full textvan den Heuvel, Edward. "The Big Bang as Origin of the Universe." In Astronomers' Universe, 137–60. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-23543-1_9.
Full textMoss, Ian. "The Quantum Origin of the Universe." In The Early Universe, 1–18. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-4015-4_1.
Full textConference papers on the topic "Origin of the universe"
Wanas, M. I., and Shaaban Khalil. "THE GEOMETRIC ORIGIN OF DARK ENERGY." In THE DARK SIDE OF THE UNIVERSE: 4th International Workshop on the Dark Side of the Universe. AIP, 2009. http://dx.doi.org/10.1063/1.3131502.
Full textKobayashi, Chiaki. "Inhomogeneous chemical enrichment of the universe." In ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2011. AIP, 2012. http://dx.doi.org/10.1063/1.4763379.
Full text"The Origin and Development of the Universe." In 57th International Astronautical Congress. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2006. http://dx.doi.org/10.2514/6.iac-06-h.l.3.01.
Full textPervushin, Victor Nikolaevich. "Origin of masses in the early Universe." In XXII International Baldin Seminar on High Energy Physics Problems. Trieste, Italy: Sissa Medialab, 2015. http://dx.doi.org/10.22323/1.225.0136.
Full textRantsev-Kartinov, V. A. "Structures in the universe and origin of galaxies." In The 33rd IEEE International Conference on Plasma Science, 2006. ICOPS 2006. IEEE Conference Record - Abstracts. IEEE, 2006. http://dx.doi.org/10.1109/plasma.2006.1707142.
Full textSTAROBINSKY, ALEXEI. "FUTURE AND ORIGIN OF OUR UNIVERSE: MODERN VIEW." In Proceedings of the Conference on Future of the Universe and the Future of Our Civilization. WORLD SCIENTIFIC, 2000. http://dx.doi.org/10.1142/9789812793324_0008.
Full textLazar, M., Vasile Mioc, Cristiana Dumitrache, and Nedelia A. Popescu. "On the origin of turbulent fields in interplanetary plasmas." In EXPLORING THE SOLAR SYSTEM AND THE UNIVERSE. AIP, 2008. http://dx.doi.org/10.1063/1.2993667.
Full textAlimi, J. M., A. Füzfa, Jean-Michel Alimi, and André Fuözfa. "The Abnormally Weighting Energy Hypothesis: The origin of the cosmic acceleration." In INVISIBLE UNIVERSE: Proceedings of the Conference. AIP, 2010. http://dx.doi.org/10.1063/1.3462704.
Full textTominaga, Nozomu, Nobuyuki Iwamoto, and Ken’ichi Nomoto. "Distribution of supernova properties in the early universe." In ORIGIN OF MATTER AND EVOLUTION OF GALAXIES 2013: Proceedings of the 12th International Symposium on Origin of Matter and Evolution of Galaxies (OMEG12). AIP Publishing LLC, 2014. http://dx.doi.org/10.1063/1.4874044.
Full textSteinhardt, Paul J. "The Origin of Density Fluctuations in a Cyclic Universe." In THE EMERGENCE OF COSMIC STRUCTURE: Thirteenth Astrophysics Conference. AIP, 2003. http://dx.doi.org/10.1063/1.1581769.
Full textReports on the topic "Origin of the universe"
Fuyuto, Kaori. A cross-frontier quest to reveal the origin of the Universe. Office of Scientific and Technical Information (OSTI), March 2022. http://dx.doi.org/10.2172/1853914.
Full textFuyuto, Kaori. A cross-frontier quest to reveal the origin of the Universe. Office of Scientific and Technical Information (OSTI), March 2022. http://dx.doi.org/10.2172/1856130.
Full textLiu, Ming Xiong. Unlocking secrets about the universe’s origin. Office of Scientific and Technical Information (OSTI), April 2019. http://dx.doi.org/10.2172/1504660.
Full textWoehler, Karlheinz E. The Origin of the Universe from Quantum Chaos: An Introduction to Current Ideas (Professor John Dyer Memorial Lecture). Fort Belvoir, VA: Defense Technical Information Center, May 1989. http://dx.doi.org/10.21236/ada210441.
Full textShen, T. The Cleaning of OAB Universal Covers - An Origin of Smut in Aluminum Alloys. Office of Scientific and Technical Information (OSTI), May 2002. http://dx.doi.org/10.2172/15002160.
Full textFaraggi, A. E., and J. C. Pati. A family-universal anomalous U(1) in string models as the origin of supersymmetry breaking and squark degeneracy. Office of Scientific and Technical Information (OSTI), December 1997. http://dx.doi.org/10.2172/604324.
Full textSoloviev, Volodymyr Mykolayovych, and Viktoriya Volodymyrivna Solovyova. Universal tools of modeling different nature complex systems. ФОП Однорог Т.В., 2018. http://dx.doi.org/10.31812/123456789/2865.
Full textLloyd-Ronning, Nicole Marie. Explore Your Universe. Office of Scientific and Technical Information (OSTI), May 2017. http://dx.doi.org/10.2172/1356114.
Full textTorroba, Gonzalo. A Simple Harmonic Universe. Office of Scientific and Technical Information (OSTI), December 2011. http://dx.doi.org/10.2172/1032771.
Full textVitev, Ivan. Unravelling the extreme universe. Office of Scientific and Technical Information (OSTI), June 2022. http://dx.doi.org/10.2172/1873321.
Full text