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	2020/03
形態種別	学術雑誌
査読	査読あり
標題	The Birth of a Massive First-Star Binary
執筆形態	共著
掲載誌名	The Astrophysical Journal Letters
出版社・発行元	IOP PUBLISHING LTD
巻・号・頁	892(1),pp.L14-L18
著者・共著者	◎Kazuyuki Sugimura,Tomoaki Matsumoto,Takashi Hosokawa,Shingo Hirano,Kazuyuki Omukai
概要	We study the formation of massive Population III binary stars using a newly developed radiation hydrodynamics code with the adaptive mesh refinement and adaptive ray-tracing methods. We follow the evolution of a typical primordial star-forming cloud obtained from a cosmological hydrodynamics simulation. Several protostars form as a result of disk fragmentation and grow in mass by the gas accretion, which is finally quenched by the radiation feedback from the protostars. Our code enables us, for the first time, to consider the feedback by both the ionizing and dissociating radiation from the multiple protostars, which is essential for self-consistently determining their final masses.
DOI	10.3847/2041-8213/ab7d37
ISSN	2041-8205/2041-8213