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 How far actually is the Galactic Center IRS 13E3 from Sagittarius A∗? 執筆形態 共著 掲載誌名 Publications of the Astronomical Society of Japan 掲載区分 国内 担当範囲 Data Analysis, Discussion 著者・共著者 Tsuboi, Masato; Kitamura, Yoshimi; Tsutsumi, Takahiro; Miyawaki, Ryosuke; Miyoshi, Makoto; Miyazaki, Atsushi 概要 The Galactic Center IRS 13E cluster is a very intriguing infrared object located at ∼0.13 pc from Sagittarius A∗ (Sgr A∗⁠) in projection distance. There are arguments both for and against the hypothesis that a dark mass like an intermediate mass black hole (IMBH) exists in the cluster. We recently detected the rotating ionized gas ring around IRS 13E3, which belongs to the cluster, in the H30α recombination line using ALMA. researchmap用URL https://doi.org/10.1093/pasj/psaa016