Published 2009
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A Radio View of the Sky: the Cosmic History of Star-Forming and AGN Galaxies
Abstract
We explore the cosmic evolution of radio detected star forming (SF) galaxies and active galactic nuclei (AGN), drawn from the VLA-COSMOS survey, out to z = 1.3. We present the 20 cm radio luminosity function for these populations, and find that SF galaxies evolve much more rapidly than low-power radio AGN. Our results imply that weak radio AGN (L_(1.4GHz) ≤ 5×10^(25) WHz^(−1)) occur in the most massive galaxies already at z ~ 1. They may significantly contribute to the heating of their surrounding medium and thus inhibit gas accretion onto their host galaxies, as recently suggested for the 'radio mode' AGN feedback in cosmological models.
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© 2009 Astronomical Society of the Pacific.Attached Files
Published - Smolcic2009p11347Starburst-Agn_Connection.pdf
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Additional details
- Eprint ID
- 19944
- Resolver ID
- CaltechAUTHORS:20100914-112246750
- Created
-
2010-09-16Created from EPrint's datestamp field
- Updated
-
2019-10-03Created from EPrint's last_modified field
- Caltech groups
- COSMOS
- Series Name
- ASP Conference Series
- Series Volume or Issue Number
- 408