Massive galaxies in Extended Groth Strip (Trujillo+, 2007)

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Galaxies: Photometry, Morphology, Redshifts

Scientific paper

We use the Palomar Observatory Wide-field Infrared (POWIR)/DEEP-2 survey (Davis et al., 2003, SPIE, Vol. 4834, p. 161; Bundy et al., 2006ApJ...651..120B ; Conselice et al., 2007ApJ...660L..55C, 2007MNRAS.381..962C) to define a sample of 831 galaxies with masses larger than 1011h70-2M{sun} located over ~710arcmin2 in the Extended Groth Strip (EGS). This field (63 Hubble Space Telescope tiles) was imaged with the Advanced Camera for Surveys (ACS) in the V band (F606W, 2660s) and I band (F814W, 2100s). Each tile was observed in four exposures that were combined to produce a pixel scale of 0.03arcsec, with a point spread function (PSF) of 0.12arcsec full width half-maximum (FWHM). In addition to the HST data, optical imaging from the CanadaFranceHawaii Telescope 3.6-m telescope in the B, R and I bands taken with the CFH12K camera was used. Integration times for these observations were 1h in B and R, and 2h in I. Limiting magnitudes reached are B=24.5 (AB, 8{sigma}), R=24.2 (AB, 8{sigma}) and I=23.5 (AB, 8{sigma}). The details of the data reduction for this data are provided in Coil et al. (2004ApJ...617..765C).
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