SUMMARY OF PROPOSAL 73019

MR JAMES NOEL REEVES
JNR@STAR.LE.AC.UK

UNIVERSITY OF LEICESTER
UNIVERSITY ROAD
LEICESTER
LEICESTERSHIRE UK LE1 7RH
Tel: +44 116 252 3557 Fax: +44 116 252 3311
Medium: CD ROM
Subject: AGN

ACCRETION DISK REPROCESSING FEATURES IN RADIO-QUIET QUASARS


ABSTRACT

The main power source in quasars comes from matter accreting onto a supermassive black hole. X-rays are powerful diagnostic tool for the study of quasars, as they probe the highly energetic processes close to the black hole. This proposal concerns the study of the signatures of the central accretion disk that are present in the X-ray spectra of AGN. We propose the ASCA study of bright radio-quiet quasars from the PG sample, in order to study features such as the Fe K-alpha fluorescence line, soft excess and Compton reflection in their X-ray spectra, which are direct evidence of the accretion process. In particular, the study of the iron line probes material in orbits nearest to the central supermassive black hole.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
MARTIN TURNERUNIV OF LEICESTERUK
STEVE SEMBAYUNIV OF LEICESTERUK
PAUL O'BRIENUNIV OF LEICESTERUK
TSUNEO KIIISASJAPAN
TAKAYA OHASHITOKYO METRO UNIVJAPAN

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
2)PG 0026+12
B
 7.3071 13.2681
60 ks
N
N
P
0.24100
1
3)PG 1402+261
B
211.3171 25.9258
60 ks
N
N
P
0.18000
1