7月7日(火)13:30~15:00 太陽系小天体セミナー zoom
Jul 7 Tue Solar System Minor Body Seminar
7月8日(水)13:30~15:00 NAOJ Science Colloquium zoom
Jul 8 Wed
7月10日(金)13:30~15:00 太陽天体プラズマセミナー zoom
Jul 10 Fri Solar and Space Plasma Seminar
7月10日(金)16:00~17:00 談話会 zoom
Jul 10 Fri NAOJ Seminar
詳細は以下をご覧下さい。
7月7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
- 7月7日(火曜日)13時30分~15時
- 場所
- zoom
- 講演者
- 大坪貴文
- 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
7月8日(水)
- Campus
- Mitaka
- Seminar
- NAOJ Science Colloquium
- Regularly Scheduled/Sporadic
- Every Wednesday
Date & Time: 2020 July 8, 13:30-15:00 - Place
- zoom
- Title
- Tracing galaxy evolution with deep spectroscopic survey
- Speaker
- Po-Feng Wu
- Affiliation
- EACOA fellow, Division of Optical/Infrared Astronomy
- Abstract
- The stars in galaxies hold the fossil record of galaxy formation and evolution. Stars of different ages leave various imprints on galaxy spectra, from which we can reconstruct the formation histories of individual galaxies. I will introduce the LEGA-C survey, an ESO large program using 100 nights on the VLT 8m to obtain thousands of ultra-deep galaxy spectra at z~1, the mid-point in the cosmic history, where the cosmic star-formation rate density starts to decline rapidly. I will present my effort on using the stellar ages and formation histories to reveal both the regularity and diversity of galaxy evolution at and from 7 billion years ago. This extra-galactic archaeology method will open new windows for galaxy evolution in the era of the Prime Focus Spectrograph on the Subaru telescope.
- Facilitator
- -Name:Akimasa Kataoka
7月10日(金)
- Campus
- Mitaka
- Seminar
- Solar and Space Plasma Seminar
- Regularly Scheduled/Sporadic
- Regular
- Date and time
- 10 July (Fri), 13:30-15:00
- Place
- zoom
- Speaker
- Yusuke Kawabata
- Affiliation
- SSO/NAOJ
- Title
- Spectropolarimetric observations in the solar photosphere and chromosphere
- Abstract
- Magnetic field plays an important role in many phenomena in the Sun, such as flares, coronal mass ejections, atmospheric heating, solar winds, and solar cycle. To understand the fascinating phenomena, solar physicists have been inferring magnetic field through spectropolarimetric observations. The magnetic field measurements have been mainly performed with the photospheric lines. Recently, the chromospheric magnetic field started and planned to be measured with the large aperture ground-based telescope (SST, Gregor, DKIST), rocket experiments (CLASP, CLASP2), and balloon-borne observatory (Sunrise). I will review the results of the previous studies and present the latest findings based on the up-to-date spectropolarimetric observations. The future prospects with new telescopes will also be presented.
- Facilitator
- -Name:Munehito Shoda