SUMMARY OF PROPOSAL 81706
ISAS
3-1-1, YOSHINODAI
SAGAMIHARA
KANAGAWA JAPAN 229-8510
Tel: 042-759-8149 Fax: 042-759-8455
Medium: CD ROM
Subject: AGN
A LONG OBSERVATION OF NGC4151 WITH ASCA
ABSTRACT
A broad and skewed line feature from Seyfert galaxies has been interpreted to origineate from the innermost region of an accretion disk. These features are detected not only from Seyfert 1 but also Seyfert 2 galaxies. However, the inclination angles obtained from "disk-line" fits to their spectra are always around 30 Deg, which is inconsistent with a unified scheme of Seyfert 1 and 2 galaxies. One interpretation could be an addition of a 6.4 keV line from a far outside to the disk-line from the inside but if so, time scales of the intensity variation of the two line components should be much different from each other. To investigate such a line profile time variation of Seyfert 2 like AGNs, we propose a long observation of one of the brightest Seyfert 2-like galaxy, NGC4151.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| AKIKO YAMASHITA | ISAS | JAPAN |
| CHIHO MATSUMOTO | ISAS | JAPAN |
| KAZUKI TAKAHASHI | ISAS | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)NGC4151 | A | 182.6358 | 39.4058 | 600 ks | N | Y | P | 1.50000 | 1 |