On the IMF of first stars

Journal Article · Fri May 02 00:00:00 EDT 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4874053· OSTI ID:22280446

Susa, H.; Tominaga, N. ^[1]; Hasegawa, K. ^[2]

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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)

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.

• OSTI ID: 22280446
• Journal Information: AIP Conference Proceedings, Vol. 1594, 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); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
COMPUTERIZED SIMULATION
COSMOLOGY
HYDRODYNAMICS
MASS
MASS SPECTRA
RED SHIFT
SPIN
STAR EVOLUTION
STARS