Matches in SemOpenAlex for { <https://semopenalex.org/work/W3104372544> ?p ?o ?g. }
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- W3104372544 startingPage "32" @default.
- W3104372544 abstract "We perform cosmological hydrodynamics simulations with non-equilibrium primordial chemistry to obtain 59 minihalos that host first stars. The obtained minihalos are used as initial conditions of local three dimensional radiation hydrodynamics simulations to investigate the formation of the first stars. We find two-thirds of the minihalos host multiple stars, while the rest of them have single stars. The mass of the stars found in our simulations are in the range of 1 Msun la M la 300 Msun, peaking at several x 10 Msun. Most of the very massive stars of ga 140 Msun are born as single stars, although not all of the single stars are very massive. We also find a few stars of la 1 Msun that are kicked by the gravitational three body interactions to the position distant from the center of mass. The frequency that a star forming minihalo contains a binary system is sim 50%. We also investigate the abundance pattern of the stellar remnants by summing up the contributions from the first stars in the simulations. Consequently, the pattern is compatible with that of the low metallicity Damped Lyman-alpha systems or the Extremely Metal Poor (EMP) stars, if the mass spectrum obtained in our experiment is shifted to the low mass side by 0.2 dex. If we consider the case that an EMP star is born in the remnant of the individual minihalo without mixing with others, the chemical signature of the pair instability supernova is more prominent, because most of them are born as single stars." @default.
- W3104372544 created "2020-11-23" @default.
- W3104372544 creator A5011140321 @default.
- W3104372544 creator A5061550422 @default.
- W3104372544 creator A5065018350 @default.
- W3104372544 date "2014-08-12" @default.
- W3104372544 modified "2023-10-17" @default.
- W3104372544 title "THE MASS SPECTRUM OF THE FIRST STARS" @default.
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