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Date and Time of the Query: 2019-06-17 T14:55:44 PDT
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For refcode 1996A&AS..120C.559B:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1996A&AS..120C.559B BATSE observations of Seyfert 2 galaxies. Bassani L., Malaguti G., Paciesas W.S., Palumbo G.G.C., Zhang S.N. ITESRE/CNR, via Gobetti 101, 40129 Bologna, Italy University of Alabama, Huntsville, U.S.A. Department of Astronomy, University of Bologna, Italy Universities Space Research Association, U.S.A. Received November 16, 1995; accepted February 7, 1996 Abstract. We use the BATSE Earth occultation technique applied to the LAD data to search for emission in the 20-100keV band from Seyfert 2 galaxies. Analysis from an initial sample of 17 objects indicates significant detection at (>6{sigma}) from 5 objects, while marginal detection (3<{sigma}<6) can be claimed for other 4, possibly 5, galaxies. The high rate (59% of the observed sample) of detection indicates both that Seyfert 2 galaxies are indeed hard X-ray emitters as expected by the unified theory of Seyfert galaxies and that BATSE has a high efficiency in discovering emission from this class of objects. Here, we report on these preliminary results, discuss their implications and outline future prospects of this on-going research program. Special Issue "3rd Compton Symposium" Key words: galaxies: Seyfert - gamma-rays: observations - X-rays: galaxies
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