SUMMARY OF PROPOSAL 51033
KYOTO UNIV.
KYOTO JAPAN 606-01
KYOTO
KITASHIRAKAWA-OIWAKE-CHO, SAKYO
Tel: 075-753-3843 Fax: 075-701-5377
Medium: 2.5GB8MM
Subject: STARS
DETECTION OF CLASS 0 PROTOSTARS IN SERPENS DARK CLOUD
ABSTRACT
We have demonstrated the capability of hard X-ray to reveal embedded protostars (class I objects). Then we next propose TO DETECT CLASS 0 OBJECTS WHICH ARE YOUNGER THAN CLASS I OBJECTS. Our goal is; 1. to probe when a star begins to emit X-ray 2. to probe X-ray emission mechanism of protostars. Serpens dark cloud is the best target. In the cloud, there are many protostars, especially class 0 objects. Two of them, FIRS1 and a FU-Ori source, show extremely exotic features. FIRS1 (class 0) has powerful jets, whose radio spectra imply synchrotron radiation from `relativistic' electrons. The FU-Ori source is the first detected protostar in ``FU Ori phase''.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| KATSUJI KOYAMA | KYOTO UNIV. | JAPAN |
| SHIRO UENO | KYOTO UNIV. | JAPAN |
| KENJI HAMAGUCHI | KYOTO UNIV. | JAPAN |
| MASAHIKO HAYASHI | NAO | JAPAN |
| NAOTO KOBAYASHI | HAWAII UNIV. | USA |
| SHIGERU YAMAUCHI | IWATE UNIV. | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)SERPENS | 1 | 277.4554 | 1.2563 | 100 ks | N | Y | P | 1.30000 | 1 |