Sep 28 Tue 10:00～11:30 Solar System Minor Body Seminar zoom
Sep 29 Wed 15:00～16:00 ALMA-J seminar zoom
詳細は以下をご覧下さい
9月28日（火）
キャンパス：三鷹
セミナー名：太陽系小天体セミナー
定例・臨時の別：定例
日時：9月28日（火曜日）10時00分～11時30分
場所：zoom
講演者：佐藤幹哉
世話人の連絡先
名前：渡部潤一
備考：テレビ会議またはスカイプによる参加も可
9月29日（水）
Campus: Mitaka
Seminar: ALMA-J seminar
Regularly Scheduled/Sporadic: Every Wednesday Date and Time: 2021 Sept 29 15:00-16:00
Place: Zoom
Speaker：Yuichi Honda (The University of Tokyo/NAOJ)
Title: Study of massive star-forming regions using FUGIN data
Abstract:
Interstellar gas before star formation is an important factor in the evolution of massive star-forming regions on the Galactic plane. In this study, we will detect the interstellar gas in the pre-stellar stage of star formation and explore how the gas changes between the spiral arms. We analyzed 13CO and 12CO (J=1-0) lines in the FUGIN galactic plane survey from the Nobeyama Radio Observatory 45 m telescope. Referring to Sawada et al 2014, We have created a distribution function of the brightness temperature (BDF) in order to understand the diffuse and bright gas component. We will also introduce an index (BDI) which indicates the dominance of the Bright component. We divide the data into voxels and map each voxel with its BDI. The BDI values suggest that some voxels are directly affected by the star formation region, while others are not. We are currently investigating how the BDI changes by masking out the HII regions listed in the F. J. Lockman 1989 catalog in the data. We are trying to identify the gas distribution that causes star formation but is not directly affected by the star forming regions.
Facilitator: Yoshito Shimajiri, Shun Ishii