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	2016/11
形態種別	学術雑誌
査読	査読あり
標題	THE HYDRODYNAMIC FEEDBACK OF COSMIC REIONIZATION ON SMALL-SCALE STRUCTURES AND ITS IMPACT ON PHOTON CONSUMPTION DURING THE EPOCH OF REIONIZATION
執筆形態	共著
掲載誌名	ASTROPHYSICAL JOURNAL
出版社・発行元	IOP PUBLISHING LTD
巻・号・頁	831(1),pp.86-105
国際共著	国際共著
著者・共著者	◎Hyunbae Park,Paul R. Shapiro,Jun-hwan Choi,Naoki Yoshida,Shingo Hirano,Kyungjin Ahn
概要	Density inhomogeneity in the intergalactic medium (IGM) can boost the recombination rate of ionized gas substantially, affecting the growth of H II regions during reionization. Previous attempts to quantify this effect typically failed to resolve down to the Jeans scale in the preionization IGM, which is important in establishing this effect, along with the hydrodynamical back-reaction of reionization on it. Toward that end, we perform a set of fully coupled, radiation-hydrodynamics simulations from cosmological initial conditions, extending the mass resolution of previous work to the scale of minihalos. Pre-reionization structure is evolved until a redshift z(i) at which the ionizing radiation from external sources arrives to sweep an R-type ionization front supersonically across the volume in a few million years, until it is trapped on the surfaces of minihalos and converted to D-type, after which the minihalo gas is removed by photoevaporative winds.
DOI	10.3847/0004-637X/831/1/86
ISSN	0004-637X/1538-4357
ORCIDのPut Code	31843112
PermalinkURL	http://orcid.org/0000-0002-4317-767X