タケカワ シュンヤ   Takekawa Shunya
  竹川 俊也
   所属   神奈川大学  工学部 物理学教室
   職種   助教
言語種別 英語
発行・発表の年月 2015/12
形態種別 その他論文
標題 Millimeter-wave Spectral Line Surveys Toward the Galactic Circumnuclear Disk and Sgr A*
執筆形態 共著
掲載誌名 ASP Conference Series
掲載区分国外
巻・号・頁 499,pp.173-173
著者・共著者 Takekawa, S,Oka, T,Tanaka, K,Matsumura, S,Miura, K,Sakai, D
概要 We have performed unbiased line surveys at the 3 mm band toward the Galactic circumnuclear disk (CND) and Sgr A* using the NRO 45 m radio telescope. We have obtained three wide-band spectra that cover the frequency range from 81.3 GHz to 115.8 GHz, detecting 50 lines from 30 species. Based on the line intensities, we classified the detected lines into three categories: the CND, GMC, HBD types. We suggest that the large molecules have been destroyed in the vicinity of the nucleus by high energy photons and/or cosmic ray particles from the nucleus.