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An enshrouded AGN in the merging starburst system Arp~299 revealed by BeppoSAX

R. Della Ceca·L. Ballo·F. Tavecchio·L. Maraschi·P. O. Petrucci·L. Bassani·M. Cappi·M. Dadina·A. Franceschini·G. Malaguti·G. G. C. Palumbo·M. Persic
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Abstract

Using a long (=150 ksec), broad-band (0.1--40 keV) BeppoSAX observation of the merging starburst system Arp 299 (=IC 694 + NGC 3690) we found the first unambiguous evidence of the presence of a deeply buried (N_H = 2.5E24 cm-2) AGN having an intrinsic luminosity of L(0.5-100 keV) = 1.9E43 cgs. The X-ray spectral properties of this AGN are discussed in detail as well as the thermal component detected at soft X-ray energies which, most likely, is associated with the starburst.

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R. Della Ceca, L. Ballo, F. Tavecchio, L. Maraschi, P. O. Petrucci, L. Bassani, M. Cappi, M. Dadina, A. Franceschini, G. Malaguti, G. G. C. Palumbo, M. Persic. 2002-11-05. An enshrouded AGN in the merging starburst system Arp~299 revealed by BeppoSAX. https://doi.org/10.1086/345925

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