No.114 Seminar ： High Energy Activity in the Central Region of the Milky Way Galaxy with the X-ray Astronomical Satellite “Hitomi
- Masayoshi Nobukawa (Faculty of Education, Nara University of Education, 2nd batch of the Hakubi researcher)
- 2016/06/21 5:15pm
- The Hakubi Center for Advanced Research (Research Administration Building 1F)
- Japanese(This seminar is open for students and researchers at Kyoto Univ.)
Summary
There are many stars and gases in the central region of our Galaxy, where stars are generated and disappear frequently. Thus, high energy phenomena are also expected. One of the most characteristics in the region is a super-massive black hole, Sagittarius A*, whose mass is 4 million times larger than the Sun. Sagittarius A* is not so active now. However, previous our researches and others have revealed that the object had been in an active phase at least several hundred years ago. A question is when and why Sagittarius A* changed its activity.
A new X-ray astronomical satellite “Hitomi” was launched from the Tanegashima Space Center on 17th February 2016. Hitomi has four instruments, such as the Micro-Calorimeter with the sensitivity ten or more higher than those in the previous X-ray satellites.
I’ve joined the Hitomi project since 2011, and archived the launch.
I would like to present the long development and a first light of the satellite.