The mass distribution of Population III stars
نویسندگان
چکیده
منابع مشابه
On the Mass of Population Iii Stars
Performing one-dimensional hydrodynamical calculations coupled with nonequilibrium processes for hydrogen molecule formation, we pursue the thermal and dynamical evolution of filamentary primordial gas clouds and attempt to make an estimate on the mass of population III stars. The cloud evolution is computed from the central proton density nc ∼ 10 2−4 cm−3 up to ∼ 1013 cm−3. It is found that, a...
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We explore the formation of secondary Population III (Pop III) stars under radiation hydrodynamic (RHD) feedback by a preformed massive star. To properly treat RHD feedback, we perform threedimensional RHD simulations incorporating the radiative transfer of ionizing photons as well as H2 dissociating photons from a preformed star. A collapsing gas cloud is settled at a given distance from a 120...
متن کاملOn the Initial Mass Function of Population Iii Stars
The collapse and fragmentation of filamentary primordial gas clouds are explored using onedimensional and two-dimensional hydrodynamical simulations coupled with the nonequilibrium processes of hydrogen molecule formation. The cloud evolution is computed from the initial central density nc = 10− 10 cm. The simulations show that depending upon the initial density, there are two occasions for the...
متن کاملEffects of Rotation on Mass Loss for Population III stars
The effects of rotation on low-metallicity stellar models are twofold: first, the models reach break-up during main sequence and may lose mass by mechanical process; second, strong internal mixing brings freshly synthesized elements towards the surface and raises the effective metallicity to higher values, so that the initially very low radiative winds are enhanced. Those two effects are also f...
متن کاملThe search for Population III stars
Population III stars, the first generation of stars formed from primordial Big Bang material with a top–heavy IMF, should contribute substantially to the Universe reionization and they are crucial for understanding the early metal enrichment of galaxies. Therefore it is very important that these objects, foreseen by theories, are detected by observations. However PopIII stars, searched through ...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2017
ISSN: 0035-8711,1365-2966
DOI: 10.1093/mnras/stx480