言語種別 英語 発行・発表の年月 2018/10 形態種別 学術雑誌 査読 査読あり 標題 ALMA view of the circumnuclear disk of the Galactic Center: tidally disrupted molecular clouds falling to the Galactic Center   ALMA view of the circumnuclear disk of the Galactic Center: tidally disrupted molecular clouds falling to the Galactic Center 執筆形態 共著 掲載誌名 Publications of the Astronomical Society of Japan 掲載区分 国外 出版社・発行元 Oxford University Press 巻・号・頁 70(5),pp.85-1-85-25 担当範囲 Data Reduction, Discussion 著者・共著者 Masato Tsuboi, Yoshimi Kitamura, Kenta Uehara, Takahiro Tsutsumi, Ryosuke Miyawaki, Makoto Miyoshi, and Atsushi Miyazaki   Masato Tsuboi, Yoshimi Kitamura, Kenta Uehara, Takahiro Tsutsumi, Ryosuke Miyawaki, Makoto Miyoshi, and Atsushi Miyazaki 概要 We present high angular resolution and high sensitivity images of the “circumnuclear disk” (CND) and the surrounding region of the Milky Way Galaxy in the CS J = 2–1, SiO v = 0 J = 2–1, H13CO+J = 1–0, C34S J = 2–1, and CH3OH JKa,Kc=21,1–11, 0A−− emission lines using ALMA.The velocity of this cloud is consistent with that of the ionized gas in the EA. These facts suggest that the molecular cloud is falling from the outer region to the vicinity of Sgr A*, being disrupted by the tidal shear, and ionized by strong UV emission from the central cluster because the impact parameter of the cloud is smaller than the first cloud. These falling clouds would play an important role in transferring material from the outer region to the CND and/or the vicinity of Sgr A*. researchmap用URL https://academic.oup.com/pasj/article/70/5/85/5060573