BeppoSAX Observation of NGC 3079

Details BeppoSAX Observation of NGC 3079 BeppoSAX Observation of NGC 3079

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...561l..69i&link_type=abstract

The Astrophysical Journal, Volume 561, Issue 1, pp. L69-L72.

Astronomy and Astrophysics

Astronomy

24

Galaxies: Active, Galaxies: Individual: Ngc Number: Ngc 3079, Galaxies: Nuclei, Galaxies: Seyfert, Galaxies: Spiral, X-Rays: Galaxies

Scientific paper

Using the BeppoSAX observatory, we have observed a nearby LINER/Seyfert 2 galaxy, NGC 3079, which is known as an outflow galaxy and a bright H2O maser source. Using the Phoswich Detection System, we have revealed that the NGC 3079 nucleus suffers from a Compton-thick absorption, with a hydrogen column density ~1025 cm-2. After corrected the absorption, the 2-10 keV luminosity becomes 1042-1043 ergs s-1 at a distance of 16 Mpc. It is 2-3 orders of magnitude higher than that observed in the Medium Energy Concentrator Spectrometer band (below 10 keV). We also detected a strong Fe K line at 6.4+0.3-0.2 keV with an equivalent width of 2.4+2.9-1.5 keV, which is consistent with the heavy absorption.

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