IGR J14488-4008: an X-ray peculiar giant radio galaxy discovered by INTEGRAL
Venturi, T.; Dallacasa, D.; Bird, A. J.; Ubertini, P.; Malizia, A.; Bassani, L.; Molina, M.; Lal, D. Vir
Italy, India, United Kingdom
Abstract
In this paper, we report the discovery and detailed radio/X-ray analysis of a peculiar giant radio galaxy (GRG) detected by INTEGRAL, IGR J14488-4008. The source has been recently classified as a Seyfert 1.2 galaxy at redshift 0.123; the radio data denote the source to be a type II Fanaroff-Riley radio galaxy, with a linear projected size exceeding 1.5 Mpc, clearly assigning IGR J14488-4008 to the class of GRG. In the X-rays, the source shows a remarkable spectrum, characterized by absorption by ionized elements, a characteristic so far found in only other four broad-line radio galaxies.