Results 21 to 30 of about 8,519,684 (295)
THE MOST IRON-DEFICIENT STARS AS THE POLLUTED POPULATION III STARS [PDF]
Accepted for publication in ApJ ...
Yutaka Komiya +2 more
openaire +2 more sources
POPULATION III STARS AROUND THE MILKY WAY [PDF]
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]
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]
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
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]
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]
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]
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]
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
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

