SUMMARY OF PROPOSAL 61057
OSAKA UNIVERSITY
OSAKA JAPAN 560
TOYONAKA
1-1 MACHIKANEYAMA-CHO
Tel: 06-850-5476 Fax: 06-850-5539
Medium: 2.5GB8MM
Subject: X-RAY BINARIES
OBSERVATION OF NEWLY DISCOVERED 152SEC PULSAR, AX J1820.5-1434
ABSTRACT
We propose the observation of 152sec pulsar, AX J1820.5-1434 discovered with ASCA Galactic Plane survey. On the spectrum analysis of the survey data, we can find an absorption structure around 3.5 keV during a low intensity phase. But, due to less statistics using only survey data, this structure has a low significance and could not determine models. Because the source is X-ray pulsar, most possible interpretation is cyclotron absorption line. Therefore, we observe it and confirm cyclotron abosorption line with the lowest energy.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| SHUNJI KITAMOTO | OSAKA UNIV. | JAPAN |
| KEN'ICHI TORII | OSAKA UNIV. | JAPAN |
| YASUAKI HASHIMOTO | OSAKA UNIV. | JAPAN |
| HIROSHI TSUNEMI | OSAKA UNIV. | JAPAN |
| KIYOSHI HAYASHIDA | OSAKA UNIV. | JAPAN |
| YUICHI KAMATA | NAGOYA UNIV. | JAPAN |
| TADAYASU DOTANI | ISAS | JAPAN |
| FUMIAKI NAGASE | ISAS | JAPAN |
| MUTSUMI SUGIZAKI | ISAS | JAPAN |
| YOSHIHIRO UEDA | ISAS | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)AXJ1820.5-1434 | 3 | 275.1229 | -14.5733 | 40 ks | N | Y | P | 0.14000 | 4 |
TARGET 1
4 TIMES 20 KSEC OBSERVATIONS ARE REQUIRED, AT INTERVALS OF ABOUT 1 DAY.