SUMMARY OF PROPOSAL 71086
INSTITUTE OF SPACE AND ASTRONAUTICAL SCIENCE
3-1-1 YOSHINODAI
SAGAMIHARA
KANAGAWA JAPAN 229-8510
Tel: 0427-59-8134 Fax: 0427-59-8455
Medium: 4GBDAT
Subject: NORMAL GALAXIES
SUPER EDDINGTON SOURCES IN NGC4559
ABSTRACT
Super Luminous Point Sources (SLPS) which is considered to be a single point source but have an X-ray luminosity of 10^{39} to 10^{40} erg/sec are found at off-center positions of about twenty nearby spiral galaxies. Some SLPSs were found near the center of the galaxy but not in the nucleus. These sources still remain as one of the most mysterious classes of objects, even after extensive studies with Einstein, ROSAT, and ASCA. In particular ASCA observations revealed the X-ray spectra and temporal variations of many of this class of objects. For the further study of these class of objects, we propose to observe one nearby spiral galaxies, NGC 4559 and, which contain two SLPS,one is near the center and another is offset about 2' from the center.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| KYOKO OKADA | SPRING-8 | JAPAN |
| KAZUHISA MITSUDA | ISAS | JAPAN |
| TADAYASU DOTANI | ISAS | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)NGC4559 | C | 188.9908 | 27.9600 | 50 ks | N | Y | P | 0.10000 | 2 |
TARGET 1
TWO 40 KS OBSERVATIONS SHOULD BE SEPARATED BY 6 MONTHS