SUMMARY OF PROPOSAL 61150
NAGOYA UNIV.
AICHI JAPAN 464-01
NAGOYA
CHIKUSA-KU
Tel: 052-789-2918 Fax: 052-789-2919
Medium: 4GBDAT
Subject: AGN
IONIZED IRON K EMISSION LINE FROM THE SEYFERT GALAXY NGC4579 - PROBING IONIZATION STRUCTURE OF AN ACCRETION DISK -
ABSTRACT
We detected an ionized iron line from NGC4579 in spite of very low luminosity Lx=1.4E41ergs/s by a 30ksec ASCA observation. The center energy of the line (6.7keV) is significantly higher than 6.4keV which is typical for usual Seyfert 1 galaxies. We propose detailed measurements of iron line profiles in the low luminosity Seyfert 1 galaxy NGC4579. We investigate dynamical and ionization structure of an accretion disk in this remarkable Seyfert galaxy using line profiles and center energy. We also determine size and density of a disk comparing our X-ray results with blackhole mass determined with HST STIS data.
CO-INVESTIGATORS
CO-I NAME | INSTITUTE | COUNTRY |
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YUICHI TERASHIMA | NAGOYA UNIV. | JAPAN |
KAZUTAMI MISAKI | NAGOYA UNIV. | JAPAN |
TAKASHI OKAJIMA | NAGOYA UNIV. | JAPAN |
HARUMI TAKATA | NAGOYA UNIV. | JAPAN |
TARGETS
TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
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1)NGC4579 | 3 | 189.4313 | 11.8181 | 40 ks | N | Y | P | 0.16000 | 2 |
TARGET 1
TWO TIMES 50KSEC OBSERVATIONS WITH AN INTERVAL OF ONE WEEK