SUMMARY OF PROPOSAL 63025

DR. DIRK GRUPE
DGRUPE@ROSAT.MPE-GARCHING.MPG.DE

MPI FUER EXTRATERRESTRISCHE PHYSIK
GIESSENBACHSTR. 6
GARCHING
GERMANY 85748
Tel: +49-89-3299-3805 Fax: +49-89-3299-3569
Medium: 4GBDAT
Subject: AGN

WARM ABSORBERS IN IRAS1239+33, A HIGH LUMINOSITY POLARIZED SOFT X-RAY AGN


ABSTRACT

Our new, soft-X-ray-selected, dusty warm-absorber candidate IRAS12397+3333 shows a unique set of properties, linking three of the most interesting phenomena in AGN research: the FeII problem, the nature and location of warm absorbers, and the role of Unified Schemes. It is a Narrow Line Sey 1, unexpectedly dusty for its high luminosity (1E11 Lsuns). It shows high optical reddening and scattering polarization up to 7%, implying aspect-dependent views. Lack of cold absorption in its steep, rapidly-variable soft-X-ray spectrum hints at warm dusty absorbers - consistent with its complex ROSAT spectrum. With our spectropolarimetry, our proposed ASCA measurement of the probable warm absorbers, and the 0.5 - 9 keV continuum, will allow a powerful probe of parsec-scale dusty ionized gas.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
KAREN LEIGHLYCOLUMBIA UNIVERSITYUSA
BEVERLEY WILLSUNIV. OF TEXASUSA
CHICO OTANIRIKENJAPAN
KLAUS BEUERMANNUNI-STERNWARTEGERMANY

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)IRAS 12397+3333
2
190.5483 33.2828 40 ksN
N
P
0.23000
1