Deep 20 GHz observations of X-ray selected QSOs the Compact Array Broadband Backend (CABB)

Details Deep 20 GHz observations of X-ray selected QSOs the Compact Array Broadband Backend (CABB) Deep 20 GHz observations of X-ray selected QSOs the Compact Array Broadband Backend (CABB)

2010-08-26

arxiv.org/abs/1008.4429v1

Astronomy and Astrophysics

Astrophysics

Galaxy Astrophysics

Accepted for publication in Proceedings of Science [PoS(ISKAF2010)072]. Poster presented at 'A New Golden Age for Radio Astr

Scientific paper

The recently commissioned Compact Array Broadband Backend (CABB) on the Australia Telescope Compact Array (ATCA) provides 2 GHz bandwidth in each frequency and polarisation, significantly increasing the sensitivity of the Array. This increased sensitivity allows for larger samples of sources to be targeted whilst also probing fainter radio luminosities. Using CABB, we have observed a large sample of objects at 20 GHz to investigate the high-frequency radio luminosity distribution of X-ray selected QSOs at redshifts less than 1. Observing at high frequencies allows us to focus on the core emission of the AGN, hence recording the most recent activity.

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