Results 21 to 30 of about 17,498 (264)
Gamma-Ray Bursts and Population III Stars [PDF]
Space Science Reviews, 2016 27 pages, 5 figures, an output from ISSI-BJ Workshop on Gamma-Ray Bursts: a tool to explore the young Universe, accepted for publication in Space Science ...
Toma, Kenji +2 more
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MAGNETIC FIELDS IN POPULATION III STAR FORMATION [PDF]
The Astrophysical Journal, 2012 We study the buildup of magnetic fields during the formation of Population III star-forming regions, by conducting cosmological simulations from realistic initial conditions and varying the Jeans resolution. To investigate this in detail, we start simulations from identical initial conditions, mandating 16, 32 and 64 zones per Jeans length, and studied
Turk, Matthew J. +3 more
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EFFECTS OF BBN ON POPULATION III STARS [PDF]
Thinking, Observing and Mining the Universe, 2004 The presence (or absence) of CNO elements in the primordial gas determines different behaviours in population III stars formation and evolution: we therefore present an analysis of the main channels for the synthesis of these elements in BBN in order to understand, within a reliable interval, their abundance in the primordial material.
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Radiative regulation of Population III star formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2009 We explore the impact of ultraviolet (UV) radiation from massive Population III (Pop III) stars of 25, 40, 80, and 120 M_sun on the subsequent Pop III star formation. In this paper, particular attention is paid to the dependence of radiative feedback on the mass of source Pop III star.
Hasegawa, Kenji +2 more
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WHERE ARE THE LOW-MASS POPULATION III STARS? [PDF]
The Astrophysical Journal, 2016 ABSTRACT We study the number and the distribution of low-mass Population III (Pop III) stars in the Milky Way. In our numerical model, hierarchical formation of dark matter minihalos and Milky-Way-sized halos are followed by a high-resolution cosmological simulation.
Tomoaki Ishiyama +5 more
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Nitrogen production in population III stars
Proceedings of the International Astronomical Union, 2022 AbstractThe first stars in the Universe have inherited their composition from primordial nucleosynthesis, so they have no metal. These stars, which are also named population III (pop III) stars, began the process of reionization in the Universe and contributed to the metal enrichment with heavy elements.
Tsiatsiou, Sofia +3 more
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Evolution of Low‐Mass Population III Stars [PDF]
The Astrophysical Journal, 2007 We present the evolutionary models of metal-free stars in the mass range from 0.8 to 1.2 Msun with up-to-date input physics. The evolution is followed to the onset of hydrogen mixing into a convection, driven by the helium flash at red giant or asymptotic giant branch phase.
Suda, Takuma +2 more
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Population III star clusters in the reionized Universe [PDF]
Monthly Notices of the Royal Astronomical Society, 2010 13 pages, 6 figures, accepted for publication in ...
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Machine Learning Detects Multiplicity of the First Stars in Stellar Archaeology Data
The Astrophysical Journal, 2023 In unveiling the nature of the first stars, the main astronomical clue is the elemental compositions of the second generation of stars, observed as extremely metal-poor (EMP) stars, in the Milky Way.
Tilman Hartwig +4 more
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Formation of Massive and Wide First-star Binaries in Radiation Hydrodynamic Simulations
The Astrophysical Journal, 2023 We study the formation of Population III stars by performing radiation hydrodynamic simulations for three different initial clouds extracted from cosmological hydrodynamic simulations.
Kazuyuki Sugimura +4 more
doaj +1 more source