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総研大コロキウム Archive

2020.02.17-2020.02.23

2月18日(火)13:30~15:00     太陽系小天体セミナー     南棟2階会議室
Feb 18 Wed         Solar System Minor Body Seminar    Conference Room, South Bldg.2F 

2月18日(火)16:00~17:00     談話会            講義室
Feb 18 Wed           NAOJ Seminar   Lecture Room

2月19日(水)10:30~12:00  総研大コロキウム      講義室
Feb 19 Wed         SOKENDAI colloquium     Lecture Room  

    
2月21日(金)13:30~     NAOJ Science Colloquium  開発棟3号館3階会議室  
Feb 21 Fri     NAOJ Science Colloquium  Conference Room, Instrument Development Bldg. 3 3F

2月21日(金)13:30~15:00  太陽天体プラズマセミナー  すばる棟院生セミナー室
Feb 21 Fri      Solar and Space Plasma Seminar    Student Seminar Room, Subaru Bldg.

詳細は以下をご覧下さい。

2月18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
2月18日(火曜日)13時30分~15時
場所
南棟2階会議室
講演者
土屋智恵

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

2月18日(火)

Campus
Mitaka
Seminar
NAOJ seminar
Regularly Scheduled/Sporadic
Scheduled
Date and time
Friday, Tue 18 16:00-17:00
Place
Lecture Room
Speaker
Victoria Meadows
Affiliation
University of Washington
Title
Characterizing Terrestrial Exoplanets for Habitability and Life
Abstract
One of the most exciting and interdisciplinary frontiers in exoplanet science is the search for habitable planets and life beyond the solar system. Recently discovered planets, especially Earth-sized planets orbiting nearby M dwarfs, will provide intriguing near-term targets for large ground-based telescopes and the James Webb Space Telescope. In the longer term, even larger telescopes are planned to directly image and explore the environments of worlds around stars like our Sun. These telescopes may detect signs of planetary habitability, or its past loss?as well as biosignatures?planetary features that suggest a biological origin. However, our ability to accurately interpret these features will depend on our understanding of planetary evolution and processes, and environmental context. This talk will provide an overview of the path to terrestrial exoplanet characterization, describing interdisciplinary research by NASA’s Virtual Planetary Laboratory team to understand how to identify habitable planets, and discriminate true signs of life from planetary processes that may mimic them. The prospects for terrestrial exoplanet characterization and life detection with JWST and other future telescopes will also be discussed.

Facilitator
-Name:Kataoka, Akimasa

2月19日(水)

Campus
Mitaka
Seminar
SOKENDAI colloquium
Regularly Scheduled/Sporadic
Regular
Date and time
Feburuary 19th, 2020, 10:30-12:00
Place
Lecture Room

Speaker
Takaharu Sisido
Affiliation
SOKENDAI 3rd year (D1) (Supervisor: Takayuki Tomaru, Yoichi Aso, Ryutaro Takahashi)
Title
The thermal conductivity measurement for sapphire and SI fiber
Speaker
Umi Kobayashi
Affiliation
SOKENDAI 1st year (M1) (Supervisor: Masayuki Tanaka, Masatoshi Imanishi, Kouichiro Nakanishi)
Title
TBD

Facilitator
-Name: Kei Ito

2月19日(水)

Campus
Mitaka
Seminar
NAOJ Science Colloquium
Regularly Scheduled/Sporadic
Regularly Scheduled Date and time:Feb 19 (Wed) 13:30-
Place
Conference Room, Instrument Development Bldg. 3 3F
Speaker
Shin Toriumi
Affiliation
ISAS/JAXA
Title
Radiative MHD Modeling of Flare-productive Sunspots
Abstract
Observations revealed that the solar flares, especially the strongest events in history, emanate from complex-shaped sunspot regions. However, it has been extremely difficult to investigate the formation process of sunspots because we cannot optically observe the subsurface layer of the Sun, where magnetic fields rise and build up sunspots on the photosphere. In this study, for the first time, we succeed in simulating the entire process, in which a subsurface magnetic flux tube is elevated by the turbulent background convection and spontaneously forms complex sunspots. We find that the sunspots have a “delta” configuration (the most eruptive category of sunspots) with a strong magnetic shear and helical flux rope structure, all off which are consistent with the observations of flare-productive regions. In this talk, we discuss the key roles of turbulent convection in producing such violent sunspots.

Facilitator
-Name:Akimasa Kataoka

2月21日(金)

Campus
Mitaka
Seminar
Solar and Space Plasma Seminar
Regularly Scheduled/Sporadic
Regular
Date and time
21 February (Fri), 13:30-15:00
Place
Student Seminar Room, Subaru Bldg.
Speaker
Shinsuke Takasao
Affiliation
NAOJ
Title
Applications of solar physics to studies of stellar and protostellar magnetic activities

Abstract
Our understanding of astrophysical plasma physics has been greatly advanced through the studies of the Sun. Many magnetohydrodynamical processes have been found/examined/confirmed both observationally and theoretically. Recently, magnetic activities in other systems have received growing attention thanks to the development of observational instruments. However, since the understanding of MHD in those systems have not been studied as deeply as in the solar physics, many phenomena remain unresolved. Now is the time to apply the solar physics to new phenomena found in other systems. In this talk, I will show some application examples of the solar physics to studies of stellar and protostellar magnetic activities. Coronal heating theories are applied to understand the solar-stellar coronal similarity. Understanding of solar flares is applied to reveal the origin of huge protostellar flares. I will discuss my future plan on how the solar physics can be advanced further in the context of astrophysics.

Facilitator
-Name:Munehito Shoda

2020.01.20-2020.01.26

1月21日(火)13:30~15:00  太陽系小天体セミナー         輪講室
Jan 21 Tue         Solar System Minor Body Seminar   Rinko Room    

1月22日(水)10:30 -12:00  総研大コロキウム      講義室
Jan 22 Wed         SOKENDAI colloquium    Lecture Room 

1月24日(金)16:00~17:00  談話会               すばる棟大セミナー室
Jan 24 Fri         NAOJ Seminar   Large Seminar Room, Subaru Bldg.

詳細は以下をご覧下さい。

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2020.01.13-2019.01.19

1月14日(火)13:30~15:00  太陽系小天体セミナー          南棟2階会議室 
Jan 14 Tue      Solar System Minor Body Seminar  Conference Room, South Bldg.2F    

1月14日(火)14:00~    ALMA-J セミナー       アルマ棟 1階 102
Jan 14 Tue             ALMA-J Seminar   ALMA building Room 102

1月15日(水)10:30 -12:00  総研大コロキウム      講義室
Jan 15 Wed         SOKENDAI colloquium    Lecture Room 

1月17日(金)16:00~17:00  談話会                すばる棟大セミナー室
Jan 17 Fri         NAOJ Seminar   Large Seminar Room, Subaru Bldg.

詳細は以下をご覧下さい。

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2019.12.23-2019.12.29

12月24日(火)16:00~17:00  談話会                講義室
Dec 24 Tue    NAOJ Seminar     Lecture Room 

12月25日(水)10:30 -12:00  総研大コロキウム      講義室
Dec 25 Wed          SOKENDAI colloquium    Lecture Room 

詳細は以下をご覧下さい。

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2019.12.16-2019.12-22

12月17日(火)13:30 -15:00   太陽系小天体セミナー 南棟2階会議室
Dec 17 Tue Solar System Minor Body Seminar  Conference Room, South Bldg.2F               

12月18日(水)10:30 -12:00  総研大コロキウム      講義室
Dec 18 Wed          SOKENDAI colloquium     Lecture Room 

12月20日(金)16:00~17:00  談話会                大セミナー室
Dec 20 Fri    NAOJ Seminar     Large Seminar Room, Subaru Bldg.      

詳細は以下をご覧下さい。

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