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	2013/01
形態種別	学術雑誌
査読	査読あり
標題	RADIATIVE COOLING IMPLEMENTATIONS IN SIMULATIONS OF PRIMORDIAL STAR FORMATION
執筆形態	共著
掲載誌名	ASTROPHYSICAL JOURNAL
出版社・発行元	IOP PUBLISHING LTD
巻・号・頁	763(1),pp.52-61
担当区分	筆頭著者
著者・共著者	◎Shingo Hirano,Naoki Yoshida
概要	We study the thermal evolution of primordial star-forming gas clouds using three-dimensional cosmological simulations. We critically examine how assumptions and approximations made in calculating radiative cooling rates affect the dynamics of the collapsing gas clouds. We consider two important molecular hydrogen cooling processes that operate in a dense primordial gas: H-2 line cooling and continuum cooling by H-2 collision-induced emission. To calculate the optically thick cooling rates, we follow the Sobolev method for the former, whereas we perform ray tracing for the latter. We also run the same set of simulations using simplified fitting functions for the net cooling rates.
DOI	10.1088/0004-637X/763/1/52
ISSN	0004-637X
ORCIDのPut Code	31843049
PermalinkURL	http://orcid.org/0000-0002-4317-767X