X-ray Spectra of Powerful Narrow-Line Radio Galaxies

Session 39 - AGNs, QSOs, Active Galaxies.
Display session, Wednesday, June 11
South Main Hall,

[39.02] X-ray Spectra of Powerful Narrow-Line Radio Galaxies

S. A. Rappoport, P. R. Blanco, R. D. Cohen (CASS/UCSD), M. Ward (U.Leicester), A. Yamashita (ISAS)

Apart from the nearest example Cygnus A, to date there have been only limited spectral studies in X--rays of Faranoff--Riley class \sc ii narrow--line radio galaxies (NLRGs). We present Asca\/ observations of the NLRGs 3C219, 3C234, and 3C321. Despite their faintness in the Einstein\/ energy range, unlike Cygnus A these objects are not known to reside in X--ray luminous clusters, nor are they placed at low Galactic latitude. Therefore we can expect to measure the 0.5---7\,keV continuum and set limits on Fe K lines originating from the AGN.

3C234 and 3C321 have been shown to possess optically hidden broad--line regions visible in scattered (polarized) light, while 3C219 is a classical NLRG. We shall relate our X--ray data to the spectral properties of these objects at longer wavelengths. We shall explore the relationship powerful NLRGs to radio--loud quasars in terms of the unified scheme.

Program listing for Wednesday