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	2021/10
形態種別	学術雑誌
査読	査読あり
標題	Impact of magnetic braking on high-mass close binary formation
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 (OUP)
巻・号・頁	508(3),pp.3730-3747
著者・共著者	◎Naoto Harada,Shingo Hirano,Masahiro N Machida,Takashi Hosokawa
概要	<title>ABSTRACT</title> Combining numerical simulations and analytical modelling, we investigate whether close binary systems form by the effect of magnetic braking. Using magnetohydrodynamics simulations, we calculate the cloud evolution with a sink, for which we do not resolve the binary system or binary orbital motion to realize long-term time integration. Then, we analytically estimate the binary separation using the accreted mass and angular momentum obtained from the simulation. In unmagnetized clouds, wide binary systems with separations of &gt;100 au form, in which the binary separation continues to increase during the main accretion phase. In contrast, close binary systems with separations of &lt;100 au can form in magnetized clouds.
DOI	10.1093/mnras/stab2780
ISSN	0035-8711/1365-2966
PermalinkURL	http://academic.oup.com/mnras/advance-article-pdf/doi/10.1093/mnras/stab2780/40501359/stab2780.pdf
researchmap用URL	http://academic.oup.com/mnras/article-pdf/508/3/3730/40764951/stab2780.pdf