Results 1 to 10 of about 197,137 (264)
The evolution of supermassive Population III stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 Supermassive primordial stars forming in atomically-cooled halos at $z \sim15-20$ are currently thought to be the progenitors of the earliest quasars in the Universe. In this picture, the star evolves under accretion rates of $0.1 - 1$ $M_\odot$ yr$^{-1}$ until the general relativistic instability triggers its collapse to a black hole at masses of ...
Lionel Haemmerlé +4 more
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Modelling population III stars for seminumerical simulations [PDF]
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT Theoretically modelling the 21-cm signals caused by Population III stars (Pop III stars) is the key to extracting fruitful information on Pop III stars from current and forthcoming 21-cm observations. In this work, we develop a new module of Pop III stars in which the escape fractions of ionizing photons and Lyman–Werner (LW ...
Toshiyuki Tanaka, Kenji Hasegawa
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Population III stars: hidden or disappeared ? [PDF]
Monthly Notices of the Royal Astronomical Society, 2007 to appear in ...
TORNATORE, L, FERRARA, A, SCHNEIDER, R
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The search for Population III stars [PDF]
Proceedings of the International Astronomical Union, 2008 AbstractPopulation III stars, the first generation of stars formed from primordial Big Bang material with a top–heavy IMF, should contribute substantially to the Universe reionization and they are crucial for understanding the early metal enrichment of galaxies.
Serego Alighieri S. +5 more
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The luminosity of Population III star clusters [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 10 pages, 7 figures, to appear in ...
De Souza, Alexander L., Basu, Shantanu
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The mass distribution of Population III stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 Extremely metal-poor (EMP) stars are uniquely informative on the nature of massive Population III stars. Modulo a few elements that vary with stellar evolution, the present-day photospheric abundances observed in EMP stars are representative of their natal gas cloud composition.
M. Fraser +4 more
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The Transition from Population III to Population II Stars [PDF]
The Astrophysical Journal, 2004 4 pages, 2 figures.
Fang, Taotao, Cen, Renyue
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Disc fragmentation and the formation of Population III stars [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 Our understanding of population III star formation is still in its infancy. They are formed in dark matter minihalos of $\rm 10^5-10^6 M_{\odot}$ at $z=20-30$. Recent high resolution cosmological simulations show that a protostellar disk forms as a consequence of gravitational collapse and fragments into multiple clumps.
Latif, M. ~A. +1 more
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Magnetohydrodynamics of Population III Star Formation [PDF]
The Astrophysical Journal, 2008 Jet driving and fragmentation process in collapsing primordial cloud are studied using three-dimensional MHD nested grid simulations. Starting from a rotating magnetized spherical cloud with the number density of n=10^3 cm^-3, we follow the evolution of the cloud up to the stellar density n=10^22 cm^-3. We calculate 36 models parameterizing the initial
Machida, Masahiro N. +2 more
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The masses of Population III stars [PDF]
Monthly Notices of the Royal Astronomical Society, 1989 La formation de proto-etoiles de Population III est etudiee en suivant l'hypothese que la permanence des fluctuations de masse 10-1000 M○. apres l'ere de recombinaison peut etre importante dans la fragmentation des nuages massifs de masse ∼M J pour former des etoiles de population III, ou M J est la masse de Jeans pendant l'ere de ...
J. C. N. de Araujo, R. Opher
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