Near Infrared Imaging of the Hubble Deep Field with the Keck Telescope
Hogg, David W.; Matthews, K.; Soifer, B. T.; Armus, Lee; Pahre, Michael A.; Weinberger, A. J.; Neugebauer, G.
Abstract
Two deep K-band (2.2 microns ) images, with point-source detection limits of K=25.2 mag (one sigma), taken with the Keck Telescope in subfields of the Hubble Deep Field, are presented and analyzed. A sample of objects to K=24 mag is constructed and V606-I814 and I814-K colors are measured. By stacking visually selected objects, mean I814-K colors can be measured to very faint levels; the mean I814-K color is constant with apparent magnitude down to V606=28 mag.