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 2023/11
形態種別 学術雑誌
査読 査読あり
標題 Secondary Outflow Driven by the Protostar Ser-emb 15 in Serpens
執筆形態 共著
掲載誌名 The Astrophysical Journal
掲載区分国外
出版社・発行元 American Astronomical Society
巻・号・頁 958(2),pp.102-119
国際共著 国際共著
著者・共著者 ◎Asako Sato,Kazuki Tokuda,Masahiro N. Machida,Kengo Tachihara,Naoto Harada,Hayao Yamasaki,Shingo Hirano,Toshikazu Onishi,Yuko Matsushita
概要 Abstract

We present the detection of a secondary outflow associated with a Class I source, Ser-emb 15, in the Serpens Molecular Cloud. We reveal two pairs of molecular outflows consisting of three lobes, that is, primary and secondary outflows, using Atacama Large Millimeter/submillimeter Array 12CO and SiO line observations at a resolution of ~318 au. The secondary outflow is elongated approximately perpendicular to the axis of the primary outflow in the plane of the sky. We also identify two compact structures, Sources A and B, within an extended structure associated with Ser-emb 15 in the 1.3 mm continuum emission at a resolution of ∼40 au. The projected sizes of Sources A and B are 137 au and 60 au, respectively. Assuming a dust temperature of 20 K, we estimate the dust mass to be 2.4e-3 Msun for Source A and 3.3e-4 Msun for Source B.