SUMMARY OF PROPOSAL 71109

PROF HAJIME INOUE
INOUE@astro.isas.jaxa.jp

ISAS
3-1-1, YOSHINODAI
SAGAMIHARA
KANAGAWA JAPAN 229-8510
Tel: 0427-59-8149 Fax: 0427-59-8455
Medium: 2.5GB8MM
Subject: AGN

A FURTHER LONG LOOK AT MCG-6-30-15 WITH ASCA


ABSTRACT

Two long observations of the Seyfert 1 galaxy MCG-6-30-15 were already performed with ASCA. The spectrum clearly shows a broad and skewed feature around 5-6 keV and it is well reproduced by a so-called "disk line". However, a recent analysis has shown that it can be reproduced also by introducing an absorption edge at 3.5 keV (S XVI K-edge) in addition to a line at 6.4 keV. Furthermore, if we approximate the broad and skewed feature by two broad lines at 5.5 keV and 6.4 keV, the time variations of the two line fluxes seem to be independent of each other, suggesting that they might have different origins. However, the statistics are still insufficient to conclude it and hence we propose a reobservation of this source for 400 ks in order to see the real origin of the 5-6 keV feature.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
CHIHO MATSUMOTOISASJAPAN
MASARU MATSUOKARIKENJAPAN
HITOSHI NEGORORIKENJAPAN
HIDEYO KUNIEDANAGOYA UNIV.JAPAN
KIYOSHI HAYASHIDAOSAKA UNIV.JAPAN
A.C. FABIANIOAUK
KAZUSHI IWASAWAIOAUK

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)MCG-6-30-15
A
203.9737-34.2960
400 ks
N
Y
P
2.00000
1