Results 21 to 30 of about 8,519,684 (295)

THE MOST IRON-DEFICIENT STARS AS THE POLLUTED POPULATION III STARS [PDF]

open access: yesThe Astrophysical Journal, 2015
Accepted for publication in ApJ ...
Yutaka Komiya   +2 more
openaire   +2 more sources

POPULATION III STARS AROUND THE MILKY WAY [PDF]

open access: yesThe Astrophysical Journal, 2016
ABSTRACT We explore the possibility of observing Population III (Pop III) stars, born of primordial gas. Pop III stars with masses below 0.8 M ⊙ should survive to date though are not yet observed, but the existence of stars with low metallicity as
Yutaka Komiya   +2 more
openaire   +2 more sources

Neutrino radiation hydrodynamics in hot and dense nuclear matter and the role of microphysics in simulations of massive stars [PDF]

open access: yes, 2010
The main results of my doctoral studies were obtained from core collapse simulations of massive stars using a numerical model based on radiation hydrodynamics and three-flavour Boltzmann neutrino transport in spherical symmetry.
Fischer, Tobias
core   +1 more source

Gamma-Ray Bursts and Population III Stars [PDF]

open access: yesSpace 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
openaire   +2 more sources

Footprints of population III stars in the gravitational-wave background

open access: yes, 2021
International audienceWe investigate detection prospects of the gravitational-wave background (GWB) that originates from the merging of compact objects formed by the collapse of population III stars.
Sakellariadou, Mairi; id_orcid   +4 more
core   +1 more source

EFFECTS OF BBN ON POPULATION III STARS [PDF]

open access: yesThinking, 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]

open access: yesMonthly 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

WHERE ARE THE LOW-MASS POPULATION III STARS? [PDF]

open access: yesThe 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
openaire   +2 more sources

MAGNETIC FIELDS IN POPULATION III STAR FORMATION [PDF]

open access: yesThe 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

Nitrogen production in population III stars

open access: yesProceedings 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
openaire   +1 more source

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