Results 21 to 30 of about 300,825 (275)

Magnetohydrodynamics of Population III Star Formation [PDF]

open access: yesThe Astrophysical Journal, 2008
37 pages, 10 figures, Submitted to ApJ, For high resolution figures, see http://astro3.sci.hokudai.ac.jp/~machida/astro-ph ...
Machida, Masahiro N.   +2 more
openaire   +2 more sources

On Population III Star Formation [PDF]

open access: yesSymposium - International Astronomical Union, 1983
If primordial fluctuations were isothermal their amplitude at recombination would be non-linear on scales Mo ≃ 106÷9 M⊙. Since the Jeans mass after recombination is MJo ≃ 8 × 105 Ω−1/2 M⊙ the clouds of mass Mo would be able to form the first generation of compact objects, the so-called Population III.
A. Kashlinsky, M. J. Rees
openaire   +1 more source

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

The mass distribution of Population III stars [PDF]

open access: yesMonthly 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
openaire   +2 more sources

Gravitational Wave Background from Population III Stars [PDF]

open access: yesAIP Conference Proceedings, 2007
We estimate the gravitational wave (GW) background from Population III (Pop III) stars using the results from our hydrodynamic simulations (Suwa et al. 2007). We calculate gravitational waveforms from matter motions and anisotropic neutrino emissions for single Pop III stars.
Suwa, Y.   +3 more
openaire   +4 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

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

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

Evolution of Low‐Mass Population III Stars [PDF]

open access: yesThe 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

Diffuse cosmic neutrino background from population III stars [PDF]

open access: yesAstroparticle Physics, 2005
We study the expected diffuse cosmic neutrino flux produced by Population III (PopIII) stars during their nuclear burning phases as well as from their final stages of evolution (core collapse). Assuming a fraction f_III=10^(-3) of all baryons forms PopIII stars, our flux estimate is comparable to the diffuse neutrino flux produced by the ordinary stars
IOCCO F.   +4 more
openaire   +3 more sources

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