Abstract
The correlation between radio and X-ray emission in a sample of radio-quiet and radio-loud active galaxies (Panessa et al, 2007, 2011) informs us about the relationship between two quite different processes related to accretion the production of jets and the dissipation of gravitational power in a hot corona. It is likely that the radio luminosity is a proxy for the jet power so that the ratio of jet power to coronal luminosity ranges from about 0.01 in radio-quiet sources to about unity in radio-loud objects. In at least some powerful radio-loud sources such as blazars and radio-loud quasars there is strong evidence that the X-ray emission originates from the jet. In one case Centaurus A there is evidence that the X-ray emission from the southern jet is responsible for photoionization of clouds within a few parsecs of the nucleus of Centaurus A.
| Original language | English |
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| Pages (from-to) | 186pp |
| Journal | 39th COSPAR Scientific Assembly 2012 |
| Publication status | Published - 2012 |
| Event | 39th COSPAR Scientific Assembly 2012 - Mysore, India Duration: 1 Jan 2012 → … |