SUMMARY OF PROPOSAL 51095
OSAKA UNIVERSITY
OSAKA JAPAN 560
TOYONAKA
1-1 MACHIKANEYAMA-CHO
Tel: 06-850-5477 Fax:
Medium: 2.5GB8MM
Subject: SUPERNOVA REMNANTS AND GALACTIC DIFFUSE EMISSION
OBSERVATION OF SHRAPNEL FROM THE VELA SNR
ABSTRACT
There are several cusps structure outside the Vela SNR. They are strongly considered as shrapnels launched in the SN explosion. We observed A and D so far. A mainly consists of Si and D is heavily overabundant of Mg and Ne. Judging from the size and the abundance, the small size of shrapnel favors the high Z elements suggesting that the small shrapnel comes from the far inside of the star. There are four shrapnels observable with Asca while two of them were observed. We propose to observe the rest of two: they are B and E. E is in between A and D in size while B is bigger than D. The stellar structure and the instability produced inside the star will be really seen in X-ray regions which has been studied only in the theoretical frame work.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| BERND ASCHENBACH | MPI | GERMANY |
| EMI MIYATA | OSAKA UNIVERSITY | JAPAN |
| KENZO KINUGASA | OSAKA UNIVERSITY | JAPAN |
| TATSUHIKO ASANUMA | OSAKA UNIVERSITY | JAPAN |
| KENJI KAWASHIMA | OSAKA UNIVERSITY | JAPAN |
| TAKASHI TONERI | OSAKA UNIVERSITY | JAPAN |
| TAKUYA IMAYOSHI | OSAKA UNIVERSITY | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)VELA SHRAPNEL B1 | 1 | 135.5238 | -43.4902 | 45 ks | N | N | P | 0.42000 | 1 |
| 2)VELA SHRAPNEL B2 | 1 | 135.6150 | -43.7535 | 40 ks | N | N | P | 0.49000 | 1 |
| 3)VELA SHRAPNEL BS | 1 | 132.6000 | -43.4800 | 15 ks | N | N | P | 1.50000 | 1 |
| 4)VELA SHRAPNEL E | 1 | 119.8796 | -44.3674 | 100 ks | N | N | P | 0.13000 | 1 |