10月29日(火)13:30~15:00 太陽系小天体セミナー 南棟2階会議室
Oct 29 Tue Solar System Minor Body Seminar Conference Room, South Bldg.2F
10月30日(水)10:30~12:00 総研大コロキウム 講義室
Oct 29 Tue SOKENDAI colloquium Lecture Room
11月1日(金)16:00~17:00 談話会 大セミナー室
Nov 1 Fri NAOJ seminar Large Seminar Room
詳細は以下をご覧下さい。
10月29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
- 10月29日(火曜日)13時30分~15時
- 場所
- 南棟2階会議室
- 講演者
- 樋口あや
- 所属
- 天文データセンター
- タイトル
- Toward understanding origin of gas in debris disks
- Abstract
- Debris disks have optically thin dust components around main sequence stars. Recently, several debris disks harboring a gas componenthave been discovered in survey observations at optical, infrared, and radio wavelengths, and its origin has been discussed in terms of the evolution of protoplanetary disks and the formation of planetary bodies. In fact, many debris disks are known to reveal submillimeter-wave CO emission, e.g., 49 Ceti, β Pictoris, and 15 others or more. In addition to the CO emission, the submillimeter-wave [C I] emission has been observed toward a few debris disks. I will present recent observations of gaseous debris disks and also present our result of the first subarcsecond images of 49 Ceti in the [C I] 3P1?3P0 emission and the 614 μm dust continuum emission observed with ALMA.
- 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
10月30日(水)
- Campus
- Mitaka
- Seminar
- SOKENDAI colloquium
- Regularly Scheduled/Sporadic
- Regular
- Date and time
- October 30th, 2019, 10:30 -12:00
- Place
- Lecture Room
- Speaker
- Yoshiki Hatta
- Affiliation
- SOKENDAI 4th year (D2)(Supervisor: Takashi Sekii, Hirohisa Hara, and Othman Benomar )
- Title
- Progress report on modeling KIC 11145123
- Facilitator
- -Name: Kei Ito
- Campus
- Mitaka
- Seminar
- NAOJ seminar
- Regularly Scheduled/Sporadic
- Regular
- Date and time
- November 1st, 2019, 16:00 -17:00
- Place
- Large Seminar Room
- Speaker
- Nienke van der Marel
- Affiliation
- NRC Herzberg Astronomy and Astrophysics (Canada)
- Title
- A look into the birth cradles of planets with ALMA: signatures of planet formation in protoplanetary disks
- Abstract
-
Successful exoplanet surveys in the last decade have revealed
that planets are ubiquitous throughout the Milky Way, and show a large
diversity in mass, location and composition. At the same time, new
facilities such as the Atacama Large Millimeter/submillimeter Array (ALMA)
and optical/infrared facilities including Subaru/SCExAO and VLT/SPHERE have
provided us with sharper images than ever before of protoplanetary disks
around young stars, the birth cradles of planets. The high spatial
resolution has revealed unexpected structures in disks, such as rings,
gaps, asymmetries and spiral arms, and the enormous jump in sensitivity has
provided the tools for both large, statistically relevant surveys and deep,
sensitive molecular line studies. These observations have revolutionized
our view of planet formation, disk formation and disk evolution, bringing
model simulations and observations closer to the same level of detail. In
this talk I will discuss the current transformation in our understanding of
planet formation and the next steps and challenges in connecting theory
with exoplanet demographics and protoplanetary disk observations. - Facilitator
- -Name: Hamana, Takashi
10月30日(水)