The nuclear radio structure of X-ray bright AGN

Abstract

The physical nature of the X-ray/radio correlation of AGN is still an unsolved question. High angular resolution observations are necessary to disentangle the associated energy dynamics into nuclear and stellar components. We present MERLIN/EVN 18cm observations of 13 X-raying AGN. The sample consists of Seyfert 1, Narrow Line Seyfert 1, and LINER-like galaxies. We find that for all objects the radio emission is unresolved and that the radio luminosities and brightness temperatures are too high for star formation to play an important role. This indicates that the radio emission in these sources is closely connected to processes that occur in the vicinity of the central massive black hole, also where the X-ray emission is believed to originate in.

5 pages, 3 figures, submitted to "The Universe under the Microscope - Astrophysics at High Angular Resolution", Bad Honnef, Germany

References in corpus (8)

• The Fifth Data Release of the Sloan Digital Sky Survey
• Star formation rate indicators in the Sloan Digital Sky Survey
• The X-ray and Radio Connection in Low-luminosity Active Nuclei
• Conference Summary: AGN Physics with the Sloan Digital Sky Survey
• Submillimeter Evidence for the Coeval Growth of Massive Black Holes and Galaxy Bulges
• On the origin of radio core emission in radio-quiet quasars
• Mrk 609: resolving the circum-nuclear structure with near-infrared integral field spectroscopy
• The nature of Composite Seyfert/Star-forming galaxies revealed by X-ray observations