SUMMARY OF PROPOSAL 71122

DR AKIKO YAMASHITA
AYAMASHI@astro.isas.jaxa.jp

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: AGN

OBSCURING TORI IN RADIO GALAXIES


ABSTRACT

Obscuration of central region of AGN by molecular torus is the essence of 'unified model' for radio-quiet AGNs. For radio-quiets, there is a good correlation between column densities (NH) derived from X-ray spectra and optical/NIR emission line width: small/large NH corresponds to type 1/2 objects. However, it is not yet clear whether the correlation is also seen in radio-loud AGNs. Although small/large NH are expected for broad/narrow line radio galaxies (BLRG/NLRG), under a simple extension of the 'unified scheme' from radio-quiet AGNs to radio-loud AGNs, some exceptions can be found in radio-loud AGNs. Therefore, we propose the observations of NLRG to test 'unified scheme for radio-loud AGNs' by examining whether all NLRG have large NH value.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
HAJIME INOUEISASJAPAN
KAZUKI TAKAHASHIISASJAPAN
MAKOTO TASHIROUNIV. OF TOKYOJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)3C293
C
208.0742 31.4462
50 ks
N
Y
P
0.01000
1