SIMBAD references

1997A&A...323L...1S - Astronomy and Astrophysics, volume 323, L1-4 (1997/7-1)

X-ray detections of weak Seyfert 2's with BeppoSAX.

SALVATI M., BASSANI L., DELLA CECA R., MAIOLINO R., MATT G. and ZAMORANI G.

Abstract (from CDS):

We report the detection in the X rays of two weak Seyfert 2's (NGC 3393 and NGC 4941) with the Italian-Dutch satellite BeppoSAX. These are among the first sources observed in a sample of 12 Seyfert 2's which are being studied within the BeppoSAX core program, in an effort to probe the putative torus at high X-ray energies, calibrate an isotropic luminosity indicator for absorbed nuclei, and determine the distribution of torus thicknesses, NH. Both a Compton thick spectrum, with a reflected power law and a large equivalent width iron line, and a Compton thin spectrum, with the intrinsic power law transmitted through a large column density absorber, provide acceptable fits to both sources, with some preference for the latter model in the case of NGC 4941. The high initial detection rate in our program points to a large final X-ray sample.

Abstract Copyright:

Journal keyword(s): X-rays: galaxies - Galaxies: Seyfert - Galaxies: individual: NGC 3393 - Galaxies: individual: NGC 4941

Simbad objects: 2

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