Investigations on the optical properties and X-ray emission in compact radio AGN

Abstract

Compact radio active galactic nuclei (compact radio AGN) are compact ($\le$ 20 kpc), powerful radio sources. Currently, the preferred scenario is that they are at the early stage of AGN evolution. At present, the research of compact radio AGN mainly focuses on the radio band, other bands have not been extensively studied. We present the systemic optical properties and X-ray emission studies for compact radio AGN, to investigate the accretion properties, AGN evolution and their X-ray origin. We find that compact radio AGN have various accretion modes indicated by the accretion rate analysis. In the radio power-linear size diagram they generally follow the evolutionary trend towards large-scale radio galaxies with increasing linear size and decreasing accretion rate. Their hard X-ray emission may be from jet based on the radio/X-ray relation and fundamental plane of black hole activity.

4 pages, 2 figures, accepted for publication on Astronomische Nachrichten, Special Issue "6th Workshop on Compact Steep-Spectrum and GHz-peaked spectrum radio sources"

References in corpus (11)

• Some Aspects of Measurement Error in Linear Regression of Astronomical Data
• Cosmic X-ray Surveys of Distant Active Galaxies: The Demographics, Physics, and Ecology of Growing Supermassive Black Holes
• The Last of FIRST: The Final Catalog and Source Identifications
• Compact steep-spectrum and peaked-spectrum radio sources
• The Dynamic Evolution of Young Extragalactic Radio Sources
• Refining the fundamental plane of accreting black holes
• X-ray Properties of the GigaHertz-Peaked and Compact Steep Spectrum Sources
• The presence of intermediate-mass black holes in globular clusters and their connection with extreme horizontal branch stars
• Investigation on Young radio AGNs based on SDSS spectroscopy
• A disc corona-jet model for the radio/X-ray correlation in black hole X-ray binaries
• The X-ray emission in young radio AGNs