SUMMARY OF PROPOSAL 51271

MR KENJI HAMAGUCHI
KENJI@CR.SCPHYS.KYOTO-U.AC.JP

KYOTO UNIV.
KYOTO JAPAN 606-01
KYOTO
KITASHIRAKAWA-OIWAKE-CHO, SAKYO
Tel: 075-753-3843 Fax: 075-701-5377
Medium: 2.5GB8MM
Subject: COSMIC X-RAY BACKGROUND AND DEEP SURVEYS AND OTHER

MAGNETIC INFLUENCE ON STAR FORMATION AND X-RAY ACTIVITY


ABSTRACT

We propose to observe Lupus cloud I and II with ASCA. This star forming region contains one of the largest T associations of the southern sky. However, no massive OB pre-main-sequence stars, are found in it. The relative amount of stars with masses below below 0.5 Mo is much higher in Lupus than in any other T association. The unusual mass spectrum of the Lupus T Tauri stars suggests the initial mass function in Lupus differs from those in other clouds. A possible explanation might be the star formation process in Lupus is controlled by magnetic forces. If so, the magnetic forces must give influence on X-ray activity of stars in it.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
YOHKO TSUBOIKYOTO UNIV.JAPAN
SHIRO UENOKYOTO UNIV.JAPAN
MASAHIKO HAYASHINAOJAPAN
NAOTO KOBAYASHIHAWAII UNIV.USA
KATSUJI KOYAMAKYOTO UNIV.JAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)LUPUS1-1
3
235.3796-34.4098 40 ksN
Y
P
0.20000
1