HARD X-RAY-DETECTION OF NGC-1068 WITH BEPPOSAX

Authors
MATT G GUAINAZZI M FRONTERA F BASSANI L BRANDT WN FABIAN AC FIORE F HAARDT F IWASAWA K MAIOLINO R MALAGUTI G MARCONI A MATTEUZZI A MOLENDI S PEROLA GC PIRAINO S PIRO L
Citation
G. Matt et al., HARD X-RAY-DETECTION OF NGC-1068 WITH BEPPOSAX, Astronomy and astrophysics, 325(2), 1997, pp. 13-16
Citations number
22
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy and astrophysics → ACNP
ISSN journal
00046361
Volume
325
Issue
2
Year of publication
1997
Pages
13 - 16
Database
ISI
SICI code
0004-6361(1997)325:2<13:HXONWB>2.0.ZU;2-9
Abstract
We report on the first detection above similar to 10 keV of the archet ypal Compton-thick Seyfert 2 galaxy NGC 1068. This detection, obtained with the PDS instrument onboard BeppoSAX in the 20-100 keV range, con firms the hardness of the X-ray spectrum above a few keV (as indicated by ASCA observations) and supports models envisaging a mixture of bot h neutral and ionized reflections of an otherwise invisible nuclear co ntinuum, the neutral reflection component being the dominant one in ha rd X-rays.