On the IMF of first stars

Susa, H.; Tominaga, N.; Hasegawa, K.

doi:10.1063/1.4874053

Title: On the IMF of first stars

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Abstract

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:

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

Department of Physics, Konan University, 8-9-1, Okamoto, Higashinadaku, Kobe (Japan)
Center for Computational Science, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba (Japan)

Publication Date:: Fri May 02 00:00:00 EDT 2014

OSTI Identifier:: 22280446

Resource Type:: Journal Article

Journal Name:: AIP Conference Proceedings

Additional Journal Information:: 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); Journal ID: ISSN 0094-243X

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

Citation Formats


                    Susa, H., Tominaga, N., and Hasegawa, K. On the IMF of first stars.  United States: N. p., 2014. 
        Web.  doi:10.1063/1.4874053.

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                    Susa, H., Tominaga, N., & Hasegawa, K. On the IMF of first stars.  United States.  https://doi.org/10.1063/1.4874053

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                    Susa, H., Tominaga, N., and Hasegawa, K. 2014.  
        "On the IMF of first stars".  United States.  https://doi.org/10.1063/1.4874053.

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@article{osti_22280446,

  title        = {On the IMF of first stars},

  author       = {Susa, H. and Tominaga, N. and Hasegawa, K.},

  abstractNote = {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.},

  doi          = {10.1063/1.4874053},

  url          = {https://www.osti.gov/biblio/22280446},
  journal      = {AIP Conference Proceedings},

  issn         = {0094-243X},

  number       = 1,

  volume       = 1594,

  place        = {United States},

  year         = {Fri May 02 00:00:00 EDT 2014},

  month        = {Fri May 02 00:00:00 EDT 2014}

}

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