12月8日（月）13：30～15：00 太陽系小天体セミナー 南棟2階会議室
Dec 8 Mon Solar System Minor Body Seminar Conference Room, South Bldg.2F
12月10日（水）10：30～12：00 総研大コロキウム 中央棟（北）1F講義室
Dec 10 Wed SOKENDAI colloquium Lecture Room
12月12日（金）10：30～11：30 臨時理論コロキウム ALAM棟 1F 102
Dec 12 Fri DTA Colloquium Room 102 1F , ALMA Bldg.
12月12日（金）16：00～17：00 国立天文台談話会 大セミナー室
Dec 12 Fri NAOJ Seminar Large Seminar Room
詳細は以下をご覧下さい。
12月8日(月)
- キャンパス
- 三鷹
- セミナー名
- 太陽系小天体セミナー
- 臨時・定例の別
- 定例
- 日時
- 12月8日（月曜日）13時30分～15時
- 場所
- 南棟２階会議室
- 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
12月10日(水)
- Campus
- Mitaka
- Seminar Name
- SOKENDAI colloquium
- Regular/Irregular
- Regular
- Date
- 10:30-12:00,12/10, 2014
- Place
- Lecture Room
- Speaker
- Jun Toshikawa
- Affiliation
- D3, SOKENDAI, Mitaka(supervisor: Nobunari Kashikawa)
- Title
- Searching for Protoclusters
- Speaker
- Masafusa Onoue
- Affiliation
- M2, SOKENDAI, Mitaka(supervisor: Nobunari Kashikawa)
- Title
- Probabilistic Selection of z>6 Quasars: Initial Results from the First HSC SSP Data
- Abstract
-
I will present my high-z quasar selection method using SED fitting and its application to the first HSC-SSP data.
While it is a well-known problem that the classical quasar selection based on two colors suffers from contaminating sources such as brown dwarfs, photometric redshift with multi-color photometry is a complementary way to effectively isolate high-z quasars. Since photo-z for AGN has been less explored comparing with photo-z for galaxies, I have developed template SED fitting method by myself to construct the largest z>6 quasar sample with the HSC survey.
In this talk, I will show how our selection works on the existing quasar samples such as z>3 quasars in the COSMOS field, and then report the result of the first application to the HSC-SSP data products, which results in five z>6 quasar candidates including one possible highest-redshift (z_photo=7.3) quasar. - Speaker
- Rinko Sasahira
- Title
- TBD
- Organizer
- Name : Taiki Suzuki
- Comment
- TV conference system is available connecting from Nobeyama, Hawaii,Mizusawa, and Okayama.
12月12日(金)
- キャンパス
- 三鷹
- セミナー名
- 臨時理論コロキウム
- 臨時・定例の別
- 臨時
- 日時
- １２月１２日（金曜日） １０時３０分 ～ １１時３０分
- 場所
- ALMA棟 １０２
- 講演者
- Felipe Alves
- 所属
- Max Planck Institute for Extraterrestrial Physics
- タイトル
- Magnetic fields in star-forming regions: from molecular clouds to cores
- Abstract
- Magnetic fields affect the dynamics of the interstellar medium across a wide range of physical scales. Large-scale magnetic fields in molecular clouds, filaments and Infrared Dark Clouds are crucial ingredients on the formation of low- and high-mass star-forming regions. In this talk, I will present recent results of multi-wavelength polarimetric observations of molecular clouds and cores. Most of this research was performed toward the Pipe nebula, a suitable laboratory for early star-formation studies. Our studies reveal that starless cores have a polarimetric regime affected by the absence of internal heating, which is predicted by models of dust grain alignment. The multi-wavelength data resolves the magnetic field structure toward both starless cores and their halos, and they reveal the dynamical state of the cloud through the structure function of the position angles and the B-field strength estimations. Complementary science obtained with molecular line data reveal the chemistry and kinematics of the Pipe cores and are tentatively combined with the polarization. Ongoing and future projects focused on SMA and ALMA will be also discussed.
- 連絡先
- 名前： 長谷川 靖紘
12月12日(金)
- キャンパス
- 三鷹
- セミナー名
- 国立天文台談話会
- 臨時・定例の別
- 定例
- 日時
- 12月12日（金) 16:00-17:00
- 場所
- 大セミナー室
- 講演者
- Leonardo Testi
- 所属
- ESO, INAF-Arcetri
- タイトル
- “Protoplanetary disks and the dawn of planets”
- Abstract
- Protoplanetary disk form as a result of conservation of angular momentum during the star formation process. At early stages they mediate accretion onto the forming star at the center of the system, later become the sites for planet formation. The properties and evolution of protoplanetary disk are the key for our understanding of the diversity of planetary systems and hold the promise of allowing us to understand how pre-biotic molecules are delivered on the young planets.
In this talk I will review our current understanding of the properties and evolution of protoplanetary disks as they form planetary systems. I will focus on observations with ALMA and EVLA of the evolution of solids as the first step of planet formation, but will also discuss some recent result from ALMA related to the chemistry of disks. I will finish with an outlook into the future, reaching as far as SKA. - 連絡先
- 名前：松田 有一
以上