SUMMARY OF PROPOSAL 71149
UNIVERSITY OF TOKYO
7-3-1 HONGO
BUNKYO-KU
TOKYO JAPAN 113-0033
Tel: 03-3812-2111 EX.4202 Fax: 03-3815-8875
Medium: 4GBDAT
Subject: CLUSTERS OF GALAXIES AND SUPERCLUSTERS
HARD X-RAY IMAGING OF THE NGC 5044 GROUP. THE STUDY OF NON-THERMAL EMISSION FROM GROUPS OF GALAXIES.
ABSTRACT
We propose to observe the nearby group of galaxy NGC5044 group, to perform hard X-ray deep imaging of non-thermal hard X-ray. This non-thermal X-ray implies very important issues: particle acceleration and non-thermal pressure in clusters. The emission mechanism is thought to be inverse Compton scattering of CMB by relastivitic electrons or non-thermal bremsstrahlung between hot plasma and sub-relativistic particles. The distribution and spectral change of non-thermal hard X-ray is expected to constrain the emission mechanism.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| KAZUHIRO NAKAZAWA | UNIV. OF TOKYO | JAPAN |
| KAZUO MAKISHIMA | UNIV. OF TOKYO | JAPAN |
| TSUNEYOSHI KAMAE | UNIV. OF TOKYO | JAPAN |
| TAKAYA OHASHI | TOKYO METRO UNIV. | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)NGC5044 GROUP | A | 198.8500 | -16.3900 | 110 ks | N | N | P | 0.20000 | 4 |
TARGET 1
4 POINTINGS ARE PERFORMED. 1 POINTING AT THE CENTER OF NGC5044 GROUP AND 3 OBSERVATIONS POINTED AT 10 ARCMIN OFFSET.