7月24日（火）13：30～14：30 理論コロキウム 輪講室
Jul 24 Tue DTA colloquium Rinko-room
7月27日（金）13:30～15:00 太陽天体プラズマセミナー 大セミナー室
Jul 27 Fri Solar and Space Plasma Seminar Large Seminar Room, Subaru Bldg.
詳細は以下をご覧下さい。
7月24日（火）
- Campus
- Mitaka
- Seminar
- DTA colloquium
- Regularly Scheduled/Sporadic
- Regularly Scheduled
- Date and time
- July 24, 2018, 13:30-14:30
- Place
- Rinko room, Main Building (East)
- Speaker
- Shunsuke Ideguchi
- Affiliation
- NAOJ
- Title
- Basics of Faraday Tomography Technique and Its Applications to Cosmic Magnetism Study
- Abstract
- The synchrotron radiations from various astronomical objects and their Faraday rotation allow us to obtain the information about magnetic fields of the objects and of the media between them and us. The low-frequency, wide-band polarization observations made with the next-generation telescopes represented by Square Kilometer Array (SKA) and its precursors/pathfinders make it possible to use Faraday rotation to create a tomographic reconstruction of magnetized structures along the line of sight, a technique known as Faraday tomography. In this talk, I will introduce the basics of the technique and overview the cosmic magnetism studies using the technique so far.=
- Facilitator
- -Name：Tomoya Takiwaki
- Comment
- in English
7月27日（金）
- Campus
- Mitaka
- Seminar
- Solar and Space Plasma Seminar
- Regularly Scheduled/Sporadic
- Regular
- Date and time
- 27 July (Fri), 13:30-15:00
- Place
- Large Seminar Room, Subaru Bldg.
- Speaker
- Kiyoto Shibasaki
- Affiliation
- Solar Physics Research Inc.
- Title
- Magnetic moment of thermal plasma: Revisiting the Bohr-van Leeuwen theory
- Abstract
-
Magnetic properties of thermal plasma can be explained by studying behavior of charged particles constituting the plasma in the magnetic field. According to the Bohr-van Leeuwen theory, it has been believed that the thermal plasma do not have magnetic moment. Here, we revisit the foundation of the theory and show that the thermal plasma do have magnetic moment and it plays important roles in the solar atmosphere.
It is suggested that the magnetic Kelvin force acting on the magnetized plasma should be include in the magneto hydrodynamic (MHD) equation of motion. - Facilitator
- -Name：Shin Toriumi
- Comment