ar X iv : a st ro - p h / 01 08 50 0 v 1 3 1 A ug 2 00 1 BeppoSAX Observation of NGC 3079
نویسندگان
چکیده
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 PDS detector, we have revealed that the NGC 3079 nucleus suffers from a Compton-thick absorption, with a hydrogen column density ∼ 10 cm. After corrected the absorption, the 2–10 keV luminosity becomes 10 erg s at a distance of 16 Mpc. It is 2–3 orders of magnitude higher than that observed in the MECS band (below 10 kev). We also detected a strong Fe-K line at 6.4 −0.2 keV with an equivalent width of 2.4 +2.9 −1.5 keV, which is consistent with the heavy absorption. Subject headings: galaxies: active — galaxies: individual (NGC 3079) — galaxies: nuclei — galaxies: Seyfert — galaxies: spiral — X-rays: galaxies
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