SUMMARY OF PROPOSAL 53015

DR. WOLFGANG P. BRINKMANN
WPB@MPE-GARCHING.MPG.DE

MPI FUER EXTRATERRESTRISCHE PHYSIK
GERMANY 85740
GARCHING
POSTFACH 1603
Tel: 089 3299 3877 Fax: 089 3299 3569
Medium: 2GBDAT
Subject: AGN

ASCA STUDY OF TWO BROAD ABSORPTION LINE QUASARS


ABSTRACT

Broad absorption line quasars (BALQSOs) represent a 10 - 15ubclass of all QSOs. Recent work suggests that they are normal, radio quiet quasars seen from an unusual direction and thus, BALQSOs provide a unique probe of conditions near the nucleus of most QSOs. Only very few BALQSOs were detected in X-rays but the observations support the idea that BALQSOs are not intrinsically X-ray faint but heavily absorbed and thus hard to detect in ROSAT's soft energy band. Considering the enormous scientific potential to study the matter distribution, its ionization status and abundances, as well as the geometrical conditions in the central regions of quasars we propose to observe the two most promising BALQSOs with marginal ROSAT detections with ASCA.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
MASARU MATSUOKARIKENJAPAN
JOACHIM SIEBERTMPE GARCHINGGERMANY
YUAN WEIMINMPE GARCHINGGERMANY

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)Q2217-1759
3
333.8817-17.7389 30 ksN
Y
P
0.65000
1