2003A&A...406..555D

We discuss the X-ray, optical and radio properties of AX J0843+2942, a high luminosity Type 2 AGN found in the ASCA Hard Serendipitous Survey. The X-ray spectrum is best described by an absorbed power-law model with a photon index of Γ=1.72^+0.3_–0.6 and intrinsic absorbing column density of N_H=1.44^+0.33_–0.52x10²³cm^–2. The intrinsic luminosity in the 0.5-10keV energy band is ≃3x10⁴⁵erg/s, well within the range of quasar luminosities. AX J0843+2942, positionally coincident with the core of a triple and strong (S_1.4GHz∼1Jy; P_1.4GHz∼9x10³³erg/s/Hz) radio source, is spectroscopically identified with a Narrow Line object (intrinsic FWHM of all the permitted emission lines ≲1200km/s) at z=0.398, having line features and ratios typical of Seyfert-2 like objects. The high X-ray luminosity, coupled with the high intrinsic absorption, the optical spectral properties and the radio power, allow us to propose AX J0843+2942 as a Radio-Loud ``Type 2 QSO". A discussion of the SED of this object is presented here together with a comparison with the SED of Ultra Luminous Infrared Galaxies, other ``Type 2 QSO" candidates from the literature, and ``normal" Radio-Quiet and Radio-Loud QSOs.