Results 51 to 60 of about 201,594 (302)
MEGATRON: The environments of Population III stars at Cosmic Dawn and their connection to present day galaxies [PDF]
Monthly notices of the Royal Astronomical SocietyWe present results of Population III (Pop III) formation in the megatron suite of simulations, which self-consistently follows radiation and non-equilibrium chemistry, and resolves gas at near-pc resolution in a Milky Way-mass progenitor at Cosmic Dawn.
Anatole Storck +9 more
semanticscholar +1 more source
Explaining the high nitrogen abundances observed in high-z galaxies via population III stars of a few thousand solar masses [PDF]
Astronomy & AstrophysicsEfforts to understand the origin and growth of massive black holes observed in the early Universe have spurred a strong interest in the evolution and fate of rapidly-accreting primordial (metal-free) stars.
D. Nandal +5 more
semanticscholar +1 more source
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.
openaire +2 more sources
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
openaire +2 more sources
The Ultimately Large Telescope: What Kind of Facility Do We Need to Detect Population III Stars? [PDF]
Astrophysical Journal, 2020 The launch of the James Webb Space Telescope (JWST) will open up a new window for observations at the highest redshifts, reaching out to . However, even with this new facility, the first stars will remain out of reach, as they are born in small minihalos
A. Schauer, N. Drory, V. Bromm
semanticscholar +1 more source
Metal‐poor stars observed with the automated planet finder telescope. III . CEMP ‐no stars are the descendant of population III stars [PDF]
Astronomical Notes - Astronomische Nachrichten, 2021 In this study, we report a probabilistic insight into the stellar mass and supernovae (SNe) explosion energy of the possible progenitors of five CEMP-no stars. This was done by a direct comparison between the abundance ratios [X/Fe] of the light-elements
Nour Aldein Almusleh +6 more
semanticscholar +1 more source
Effective model for the 21-cm signal with population III stars [PDF]
Physical Review DObservations of the 21-cm signal are opening a window to the cosmic-dawn epoch, when the first stars formed. These observations are usually interpreted with semi-numerical or hydrodynamical simulations, which are often computationally intensive and ...
Hector Afonso G. Cruz +3 more
semanticscholar +1 more source
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
openaire +3 more sources
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
openaire +2 more sources
Contribution of population III stars to merging binary black holes [PDF]
Reviews of Modern Plasma PhysicsA large number of mergers of binary black holes (BHs) have been discovered by gravitational wave observations since the first detection of gravitational waves 2015.
A. Tanikawa
semanticscholar +1 more source