研究者情報 | 神奈川大学

ヒラノ　シンゴ Hirano Shingo 平野　信吾所属神奈川大学工学部応用物理学科職種助教
言語種別	英語
発行・発表の年月	2018/04
形態種別	学術雑誌
査読	査読あり
標題	Metal-poor star formation triggered by the feedback effects from Pop III stars
執筆形態	共著
掲載誌名	Monthly Notices of the Royal Astronomical Society
出版社・発行元	Oxford University Press
巻・号・頁	475(4),pp.4378-4395
著者・共著者	◎Gen Chiaki,Hajime Susa,Shingo Hirano
概要	Metal enrichment by first-generation (Pop III) stars is the very first step of the matter cycle in structure formation and it is followed by the formation of extremely metal-poor (EMP) stars. To investigate the enrichment process by Pop III stars, we carry out a series of numerical simulations including the feedback effects of photoionization and supernovae (SNe) of Pop III stars with a range of masses of minihaloes (MHs), Mhalo, and Pop III stars, MPopIII. We find that the metal-rich ejecta reach neighbouring haloes and external enrichment (EE) occurs when the HII region expands before the SN explosion. The neighbouring haloes are only superficially enriched, and the metallicity of the clouds is [Fe/H] &lt -5.
DOI	10.1093/mnras/sty040
ISSN	1365-2966
ORCIDのPut Code	42515039
PermalinkURL	http://orcid.org/0000-0002-4317-767X