SUMMARY OF PROPOSAL 73013
OSSERVATORIO ASTRONOMICO DI BOLOGNA
VIA ZAMBONI, 33
BOLOGNA
ITALY I-40126
Tel: +39+51-259413 Fax: +39+51-259407
Medium: 4GBDAT
Subject: NORMAL GALAXIES
PEERING BEYOND THE NUCLEAR DISKS SURROUNDING THE ELLIPTICAL GALAXY NGC 7052
ABSTRACT
Recent HST, VLBI and X-ray observations have shed light into the existence of massive black holes, in a likely quiescent state of accretion, in normal galaxies. Since the X-ray band provides a unique diagnostic probe to study the regions surrounding the central "engine", we propose a 100 ks observation of the elliptical galaxy NGC 7052, characterized by a dust and gas disk within a radius of about 1 kpc, with ASCA, which offers a broad band, good spectral resolution and great sensitivity at low energies, where the bulk of the X-ray emission comes from. NGC 7052 has never been observed before in X-rays. It will be possible to study the nature of the soft X-ray emission and the contribution of X-ray binaries to the hard X-rays and to properly model the inferred multi-phase plasma.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| ANDREA COMASTRI | BOLOGNA OBSERVATORY | ITALY |
| MASARU MATSUOKA | RIKEN | JAPAN |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)NGC 7052 | C | 319.6371 | 26.4467 | 100 ks | N | N | P | 0.00600 | 1 |