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2018.06.18-24


6月19日(火)13:30~15:00  太陽系小天体セミナー    南棟2階会議室  
Jun 19 Tue      Solar System Minor Body Seminar  Conference Room, South Bldg.2F

6月20日(水)10:30~12:00  総研大コロキウム       講義室
Jun 20 Wed         SOKENDAI colloquium     Lecture Room

詳細は以下をご覧下さい。

6月19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
6月19日(火曜日)13時30分~15時
場所
南棟2階会議室
講演者
古荘玲子

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

6月20日(水)

Campus
Mitaka
Seminar
SOKENDAI colloquium
Regularly Scheduled/Sporadic
Regular
Date and time
June 20, 2018, 10:30 -12:00

Place
Lecture Room

Speaker
SAI Jinshi
Affiliation
D1 at the University of Tokyo(Supervisor: OHASHI Nagayoshi,,)
Title
Disk Structures around the Class I Protostar L1489 IRS Revealed by ALMA
Abstract (if you like):We observed a Class I protostar, L1489 IRS with ALMA at high spatial resolutions of ~0.3” in ALMA Band 6 (230 GHz). Our new observations in C18O 2-1 emission allowed us to confirm that the Keplerian disk extends to ~600 au in radius. We also found a gap structure at a radius ~200-300 au on a disk in C18O 2-1, and that the gas disk of L1489 IRS consists of two disks, an inner disk extending to ~200 au and an outer disk extending to ~300-600 au in radius. Furthermore, it was found that the inner disk and outer disk are misaligned by ~15 deg by comparison between observations and a kinematic model of a Keplerian disk. This misaligned disk system suggests that the axis of angular momentum of an accretion changes its direction during the star and circumstellar disk formation process. 1.3 mm dust continuum extends to ~ 370 au continuously however a gap structure is seen in C18O. It infers that the gap in C18O is due to CO depletion but the origin of the C18O gas gap is still on debated.

Speaker
Jungha Kim
Affiliation
SOKENDAI 4th year (D2)(Supervisor: Mareki Honma,Tomoya Hirota,Katsunori Shibata)
Title
Dynamics of jets/outflows from high-mass young stellar objects revealed by KaVA and ALMA observations
Abstract (if you like):

Please note that the presenter information posted here is not necessarily listed in order of presentation.

Facilitator
-Name:Yoshiki Hatta

Comment
TV conference system is available connecting from Nobeyama, Hawaii, Mizusawa, and Okayama.

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