SUMMARY OF PROPOSAL 71070
KYOTO UNIVERSITY
KITASHIRAKAWA-OIWAKE-CHO SAKYO-KU
KYOTO
KYOTO JAPAN 606-8502
Tel: (81)-75-753-3867 Fax: (81)-75-753-3799
Medium: 2.5GB8MM
Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION
THE 6.4KEV LINE FROM CLUMP 2
ABSTRACT
We discovered the "X-ray reflection nebular" Sgr B2 which emits only indirect X-rays by irradiated external source. This object gave us very rich information about the environment of our Galactic center. It gave a limit on the abundance of heavy elements and the mass of the giant molecular cloud. Moreover, it indicates the past activity of the Galactic center from the study of incident X-rays. We propose the observation of Clump 2 cloud, which is the second candidate of this "X-ray reflection nebular" becouse it also radiates strong 6.4-keV line emission. This cloud will provide more information for us. We can establish this new classification "X-ray reflection nebular" and decide the position of the primary X-ray source from the comparison of two cloud.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| KATSUJI KOYAMA | KYOTO UNIVERSITY | JAPAN |
| YOSHITOMO MAEDA | THE PEN. STATE UNIV. | JAPAN |
| MASAAKI SAKANO | KYOTO UNIVERSITY | JAPAN |
| SHIGEO YAMAUCHI | IWATE UNIVERSITY | JAPAN |
| TAKESHI TSURU | KYOTO UNIVERSITY | JAPAN |
| NORIKO YAMASAKI | TOKYO METRO-U | JAPAN |
| TAE FURUSHO | TOKYO METERO-U | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)CLUMP_2 | B | 268.0604 | -26.4247 | 100 ks | N | Y | P | 0.05000 | 1 |
TARGET 1
WE HOPE THAT OUR OBSERVATION WILL BE PERFORMED DURING THE AUTUMN.