The Bright Ages Survey. I. Imaging Data

Details The Bright Ages Survey. I. Imaging Data The Bright Ages Survey. I. Imaging Data

2005-10-19

arxiv.org/abs/astro-ph/0510595v1

Astrophys.J.638:603-612,2006

Astronomy and Astrophysics

Astrophysics

30 pages, 5 figures, accepted by ApJ

Scientific paper

10.1086/499095

This is the first paper in a series presenting and analyzing data for a K-selected sample of galaxies collected in order to identify and study galaxies at moderate to high redshift in rest-wavelength optical light. The sample contains 842 objects over 6 separate fields covering 75.6 arcmin^2 down to K=20-20.5. We combine the K-band with UBVRIzJH multi-band imaging, reaching depths of R~26. Two of the fields studied also have deep HST WFPC2 imaging, totaling more than 60 hours in the F300W, F450W, F606W, and F814W filters. Using artificial galaxy modeling and extraction we measure 85% completeness limits down to K=19.5-20, depending on the field examined. The derived K-band number counts are in good agreement with previous studies. We find a density for Extremely Red Objects(EROs; R-K>5) of 1.55+/-0.16 arcmin^{-2} for K<19.7, dominated by the 1714+5015 field (centered on 53w002), with an ERO number density more than 3 times that of the other sample fields. If we exclude the counts for 1714+5015, our density is 0.95+/- 0.14 arcmin. Both ERO densities are consistent with previous measurements due to the significant known cosmic variance of these red sources.Keck spectroscopic redshifts were obtained for 18 of the EROs, all but one of which are emission galaxies. None of the EROs in the 1714+5015 field for which we obtained spectroscopic redshifts are associated with the known z=2.39 over-density, although there are three different galaxy redshift pairs (z=0.90, z=1.03, z=1.22).

Affiliated with

Also associated with

No associations

Rating

The Bright Ages Survey. I. Imaging Data does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Bright Ages Survey. I. Imaging Data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Bright Ages Survey. I. Imaging Data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-475357