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The 1.4 GHz radio properties of hard X-ray selected AGN

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arxiv 1411.7829 v1 pith:PGIA4F2M submitted 2014-11-28 astro-ph.HE

The 1.4 GHz radio properties of hard X-ray selected AGN

F. Panessa , A. Tarchi , P. Castangia , E. Maiorano , L. Bassani , G. Bicknell , A. Bazzano , A.J. Bird
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A. Malizia P. Ubertini
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classification astro-ph.HE
keywords radioemissionhardhundredsscalesx-rayaccretingaccretion
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We have analyzed the NVSS and SUMSS data at 1.4 GHz and 843 MHz for a well defined complete sample of hard X-ray AGN observed by INTEGRAL. A large number (70/79) of sources are detected in the radio band, showing a wide range of radio morphologies, from unresolved or slightly resolved cores to extended emission over several hundreds of kpc scales. The radio fluxes have been correlated with the 2-10 keV and 20-100 keV emission, revealing significant correlations with slopes consistent with those expected for radiatively efficient accreting systems. The high energy emission coming from the inner accretion regions correlates with the radio emission averaged over hundreds of kpc scales (i.e., thousands of years).

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Cited by 2 Pith papers

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  1. Simultaneous radio, optical and X-ray monitoring of hard X-ray selected AGN: a variability study

    astro-ph.HE 2026-07 conditional novelty 6.0

    In 14 hard-X-ray-selected AGN monitored for two years, variability is strongest in X-rays and weakest in radio, and source variability explains only ~2-3% of the scatter in the Fundamental Plane.

  2. Dual AGN and Multiple SMBH Systems in the Era of SKAO

    astro-ph.HE 2026-06 unverdicted novelty 2.0

    A review outlining radio methods for dual AGN and SMBHB detection and the role of SKAO in enabling comprehensive studies across cosmic time.