Other
Scientific paper
Oct 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agn8.confe..28t&link_type=abstract
Proceedings of the 8th National Conference on AGN, held in Torino, Italy, May 19-22, 2008. Edited by L. Lanteri, C.M. Raiteri,
Other
Scientific paper
The nature of soft X-ray emission (0.5-2 keV) in FRII powerful radio galaxies is unclear yet. One possible explanation is that this kind of emission is related to the relativistic jet, as in FRI radio galaxies. Recent XMM-Newton observations of two obscured FRII radio sources, 3C 445 and 3C 234, have solved the soft excess for the first time, suggesting another possible interpretation. The soft X-ray emission could be related to extended photoionized circumnuclear gas, as in Seyfert 2 galaxies, where this emission seems to be related to the Narrow Line Regions. We will present XMM-Newton (EPIC+RGS) and Chandra (ACIS) observations of two Narrow Line Radio Galaxies, Cygnus A and 3C 33. In spite of the complexity of their spectra, both sources seem to support the photoionization scenario.
Bianchi Simone
Grandi Paola
Guainazzi Matteo
Malaguti Giuseppe
Palumbo Giandomenico
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