11月12日（火）13:30～15:00 太陽系小天体セミナー 輪講室
Nov 12 Tue Solar System Minor Body Seminar Rinko Room
11月13日（水）10:30 -12:00 総研大コロキウム 講義室
Nov 13 Wed SOKENDAI colloquium Lecture Room
11月13日（水）13:30～15:00 科学研究部コロキウム 開発棟３号館３階セミナー室
Nov 13 Wed Colloquium of Division of Science Conference room, Instrument Development Bldg.3 3F
詳細は以下をご覧下さい。
11月12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
- 11月12日（火曜日）13時30分～15時
- 場所
- 輪講室
- 講演者
- 秋澤宏樹
- 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
11月13日（水）
- Campus
- Mitaka
- Seminar
- SOKENDAI colloquium
- Regularly Scheduled/Sporadic
- Regular
- Date and time
- November 13th, 2019, 10:30 -12:00
- Place
- Lecture Room
- Speaker
- Satoshi Kikuta
- Affiliation
- SOKENDAI 5th year (D3) (Supervisor: Masa Imanishi, Yuichi Matsuda, and Yutaka Komiyama)
- Title
- Lyman alpha halos around star forming galaxies at redshift 3
- Speaker
- Yuhang Zhao
- Affiliation
- SOKENDAI 5th year (D3) (Supervisor: Matteo Leonardi, Raffaele Flaminio, Ryutaro Takahashi
- Title
- Frequency dependent squeezing for gravitational wave detectors
- Facilitator
- -Name： Kei Ito
11月13日（水）
- キャンパス
- 三鷹
- セミナー名
- 科学研究部コロキウム
- 定例・臨時の別
- 定例
- 日時
- 11月13日（水曜日）13時30分～15時
- 場所
- 開発棟3階会議室
- 講演者
- Othman M. Benomar
- 所属
- Solar Science Observatory, NAOJ
- タイトル
- Rotation of solar-like stars probed using asteroseismology
- Abstract
-
Recent space instruments such as Kepler have been providing high quality photometric lightcurves for distant stars, enabling detailed asteroseismic studies for ten of thousands of stars.
For example, our understanding of the rotation of solar-like stars has been significantly improved. Solar-like stars are intermediate-mass stars with an outer convective envelope that excite acoustic waves. Asteroseismology study those waves in order to probe the star’s interior and reveal its structure and evolution.
Due to asteroseismology, there is now clear evidences for an angular momentum transport acting within solar-like stars and enforcing a weak radial differential rotation (Deheuvels+2014, Deheuvels+2015, Benomar+2015, Nielsen+2017). Kepler data also enabled us to evaluate the latitudinal differential rotation for main-sequence solar-like stars. This has shown that a vast majority of them are likely to have a slow pole and a faster equator, as it is observed for the Sun (Benomar+2018, Bazot+2019). Although ~30% of the Sun-like stars may show a much stronger latitudinal differential rotation than the Sun, these results suggest that the mechanism in play in the Sun may not be different than most solar-like stars in terms of magnetism, activity and dynamo. - 連絡先
- -名前：Akimasa Kataoka