SUMMARY OF PROPOSAL 51046
INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE
KANAGAWA JAPAN 229
SAGAMIHARA
YOSHINODAI 3-1-1
Tel: 0427-51-3911 Fax: 0427-59-3924
Medium: 2.5GB8MM
Subject: X-RAY BINARIES
A STUDY OF SPECTRAL FEATURE OF ADC SOURCE X0921-630
ABSTRACT
Accretion Disk Corona Source X0921-630 has a very long orbital period of 9 day and exhibits a partial eclipse lasting about 1 day. We detected a significant broad emission line at 6.7 keV with both SIS and GIS during the eclipse. Because of the long orbital period and relative faintness of the source, no observations of a complete orbital cycle yet exist in either the X-ray or optical bands. Almost observations (EXOSAT, Ginga and ASCA) performed around eclipse. So, we propose observation of X0921-630 in other phases. We investigate the relation of hight and temperature of the Accretion Disk Corona with the comparison of spectral and X-ray flux in other phases. Also, we can constrain the emission region of Fe line with the comparison of other phases.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| TADAYASU DOTANI | ISAS | JAPAN |
| KAZUHISA MITSUDA | ISAS | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)X0921-630 | 2 | 140.6446 | -63.2948 | 60 ks | Y | Y | P | 2.00000 | 1 |
TARGET 1
PT1 PHASE : 0.2-0.3 ; PT2 PHASE 0.45-0.55; PT3 PHASE 0.7-0.8
Epoch: 46248.6800 Period: 9.01150000 Min: 0.2000Max: 0.8000