INTEGRAL detection of two Seyfert 1 galaxies: ESO 140-43 and ESO 141-55
Abstract
A region centered roughly on RA 18:30 h, DEC -60 deg (constellation Pavo) was observed by INTEGRAL from 2007 Oct 29 to Nov 4 for about 378 ks. In this observation, proposed to observe extended Galactic diffuse emission, we discovered in IBIS/ISGRI sky maps two new INTEGRAL hard X-ray (20-100 keV) sources: 1) A source with 14 sigma significance at position RA = 18 45 10, DEC = -62 21 21 (J2000.0; estimated uncertainty 2 arcmin), consistent with ESO 140-43, a Seyfert-1 galaxy at z=0.0141.
- Publication:
-
The Astronomer's Telegram
- Pub Date:
- November 2007
- Bibcode:
- 2007ATel.1264....1B
- Keywords:
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- Optical;
- X-ray;
- Gamma Ray;
- AGN