Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aspc..446..185f&link_type=abstract
Galaxy evolution: Infrared to millimeter wavelength perspective. Proceedings of a conference held at Guilin, China 25-29 October
Astronomy and Astrophysics
Astronomy
Scientific paper
Using the multi-wavelength COSMOS survey we investigate the co-evolution of star-forming galaxies and obscured AGNs at the bright end of the luminosity function up to z˜2. To achieve this goal we use a complete sample of 24μm selected sources, most of which have reliable identifications at optical wavelengths and accurate photometric redshifts. Using IRAC and MIPS color selection criteria we separate the sample into galaxies dominated by star formation and galaxies dominated by nuclear accretion. We find that at all redshifts these obscured AGNs dominate the galaxy luminosity function at the highest bolometric luminosities. Their comoving space density increases with redshift in parallel to the evolution of star-forming sources.
Cosmos Collaboration
Le Floc'h Emeric
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