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Title: On the IMF of first stars

We investigate the formation of the first stars in 60 minihalos found in cosmological simulations, utilizing radiation hydrodynamics simulations. We find ∼70% of the halos host multiple stellar system, while the rest of them have single stars. The stellar mass found in our simulations is in the range of 0.5M{sub ⊙} < M < 300M{sub ⊙}, peaking at several tens of Msun. We do not find that the mass spectrum do not have significant dependence on the formation redshifts and the spin parameters of parent minihalos.
Authors:
;  [1] ;  [2]
  1. Department of Physics, Konan University, 8-9-1, Okamoto, Higashinadaku, Kobe (Japan)
  2. Center for Computational Science, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba (Japan)
Publication Date:
OSTI Identifier:
22280446
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1594; Journal Issue: 1; Conference: OMEG12: 12. international symposium on origin of matter and evolution of galaxies, Tsukuba (Japan), 18-21 Nov 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ASTROPHYSICS; COMPUTERIZED SIMULATION; COSMOLOGY; HYDRODYNAMICS; MASS; MASS SPECTRA; RED SHIFT; SPIN; STAR EVOLUTION; STARS