Astronomy and Astrophysics – Astrophysics
Scientific paper
2000-05-30
Astronomy and Astrophysics
Astrophysics
10 pages,invited talk at the meeting "X-ray Astronomy 1999: Stellar Endpoints, AGN and the Diffuse Background", held in Bologn
Scientific paper
10.1063/1.1434626
BeppoSAX observations of Broad Line Radio Galaxies (BLRGs) have shown that they have a considerable variety of spectral properties and important differences with respect to their radio-quiet counter-part Seyfert 1s. In radio galaxies the soft photons are often absorbed by cold material. In contrast, in Seyfert 1s the soft photons are generally absorbed by warm gas. The iron lines, always detected in Seyfert 1s, are not always present in BLRGs and generally are weak. In addition, small iron line equivalent widths seem to correspond to weak reflection components in radio galaxies. The emerging picture of BLRGs is complex. Probably several X-ray components, jet, accretion flow and molecular torus, mixed in different way in different objects, contribute to the production of their X-ray spectrum and determine the observed variety. The weakness of the reprocessed features can be explained either by a dilution of the Seyfert-like continuum from non-thermal (jet) radiation or by an accretion gas that is hot and geometrically thick close to the black hole and cold geometrically thin (i.e. able to reprocess the primary X-ray radiation) at larger radii.
No associations
LandOfFree
BeppoSAX Observations of Bright Radio Galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with BeppoSAX Observations of Bright Radio Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and BeppoSAX Observations of Bright Radio Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-636541