期刊
ASTRONOMICAL JOURNAL
卷 127, 期 1, 页码 180-198出版社
IOP PUBLISHING LTD
DOI: 10.1086/380611
关键词
cosmology : observations; galaxies : evolution
We have conducted a deep multicolor imaging survey of 0.2 deg(2) centered on the Hubble Deep Field North (HDF-N). We shall refer to this region as the Hawaii HDF-N. Deep data were collected in U, B, V, R, I, and z' bands over the central 0.2 deg(2) and in HK' over a smaller region covering the Chandra Deep Field North. The data were reduced to have accurate relative photometry and astrometry across the entire field to facilitate photometric redshifts and spectroscopic follow-up. We have compiled a catalog of 48,858 objects in the central 0.2 deg(2) detected at 5 sigma significance in a 3 aperture in either R or z' band. Number counts and color-magnitude diagrams are presented and shown to be consistent with previous observations. Using color selection we have measured the density of objects at 35.5 using the Lyman break technique suffer from more contamination by low-redshift objects than suggested by previous studies.
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