SUMMARY OF PROPOSAL 61091
INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE
KANAGAWA JAPAN 229
SAGAMIHARA
3-1-1 YOSHINOSAI
Tel: 0427-51-3911 Fax: 0427-59-4253
Medium: 4GBDAT
Subject: NORMAL GALAXIES
OBSERVATION OF INFRARED-LUMINOUS STARBURST GALAXIES
ABSTRACT
From the recent ASCA observations, X-ray spectra of ultraluminous infrared galaxies (ULIRGs) are usually composed of two components; a hard non-thermal component which resresents a dust-enshrouded AGN, plus a soft thermal component. If the latter is an emission from collisional ionization plasma, it represents a nuclear starburst activity, and the enormous far-infrared emission of ULIRGs is powered by nuclear starbursts. On the other hand, if it is mainly comes from photoionized plasma, the AGN activity may be much larger than previously thought. We propose to observe three nearby infrared-luminous starburst galaxies, to study the origin of the soft thermal component of ULIRGs, which will let us reveal the mystery of the power source of ULIRGs.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| TAKAO NAKAGAWA | ISAS | JAPAN |
| TSUNEO KII | ISAS | JAPAN |
| TOSHIYUKI MIYAZAKI | ISAS | JAPAN |
| YASUSHI OGASAKA | GSFC | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)UGC 8387 | 3 | 200.1471 | 34.1395 | 40 ks | N | Y | P | 0.01000 | 1 |