SUMMARY OF PROPOSAL 51268
THE SPACE AND ASTRONAUTICAL SCIENCE (ISAS)
KANAGAWA JAPAN 229
SAGAMIHARA
3-1-1, YOSHINODAI
Tel: 81-427-51-3911(EX 2623) Fax: 81-427-59-4253
Medium: 4GBDAT
Subject: COSMIC X-RAY BACKGROUND AND DEEP SURVEYS AND OTHER
A DEEP SURVEY OF CLASSICAL GAMMA-RAY BURST ERROR BOXES
ABSTRACT
In spite of the extensive efforts by many observers, classical gamma-ray bursts (GRBs) is remained unexplained for more than 25 years. The previous ASCA X-ray counterpart searches of GRBs have revealed X-ray sources in the small errors of GRB 781119 and 920501. Because of the low probabilities finding an X-ray source by chance in such small errors, this strongly suggests the real counterpart of the GRBs. However, number of examples is very much limited of only two and also the observations were done based on some selection bias, tracing the existing results of the Einstein and the ROSAT. So, we are proposing more unbiased, deep general survey of GRB errors in search for an X-ray counterpart.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| KEVIN HURLEY | UCB | USA |
| MICHEL BOER | CESR | FRANCE |
| TOM CLINE | GSFC | USA |
| JOCHEN GREINER | MPE | GERMANY |
| CHRYSSA KOUVELIOTOU | MSFC | USA |
| JOHN LAROS | UNIV. ALIZONA | USA |
| CHIP MEEGAN | MSFC | USA |
| HOLGER PEDERSEN | UNIV. COPENHAGEN | DENMARK |
| FRED VRBA | NAVAL OBSERVATORY | USA |
| ATSUMASA YOSHIDA | RIKEN | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)GRB 930706 | 2 | 281.2442 | -20.0908 | 40 ks | N | Y | P | 0.01000 | 1 |
| 2)GRB 920525 | 2 | 300.8700 | -42.5700 | 40 ks | N | Y | P | 0.01000 | 1 |