Towards a Complete Census of Galaxies at z 3

Details Towards a Complete Census of Galaxies at z 3 Towards a Complete Census of Galaxies at z 3

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21342311g&link_type=abstract

American Astronomical Society, AAS Meeting #213, #423.11; Bulletin of the American Astronomical Society, Vol. 41, p.244

Astronomy and Astrophysics

Astronomy

Scientific paper

We propose a color selection criteria for selecting both star-forming and passively evolving galaxies at z 3 using V-, J- and L-band (IRAC 3.6 µm) photometry in the GOODS south field. The method is similar to the highly successful BzK selection at z 2. Galaxies with J- and L-band S/N>=5 and (J-L)-1.2(V-J)>=0.0 are selected as star-forming galaxies independently of their dust reddening, while those with same S/N but (J-L)>2.5 and (J-L)-1.2(V-J)<0.0 are selected as passively evolving galaxies. We use photometric redshift and specific star formation rate derived from SED fitting to spectral population synthesis models to determine the validity of the criteria. We find that the criteria select star-forming galaxies between 2.0

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