Using the newly available infrared images of the Hubble Deep Field in the J, H, and K bands and an optimal photometric method, we have refined a technique to estimate the redshifts of 1067 galaxies. A detailed comparison of our results with the spectroscopic redshifts in those cases where the latter are available shows that this technique gives very good results for bright enough objects (AB(8140) < 26.0). From a study of the distribution of residuals (∆z rms /(1 + z) ≈ 0.1 at all redshifts) we conclude that the observed errors are mainly due to cosmic variance. This very important result allows for the assessment of errors in quantities to be directly or indirectly measured from the catalog. We present some of the statistical properties of the ensemble of galaxies in the catalog, and finish by presenting a list of bright high-redshift (z ≈ 5) candidates extracted from our catalog, together with recent spectroscopic redshift determinations confirming that two of them are at z = 5.34 and z = 5.60.
We present the redshift data for a survey of galaxies selected from the data
base of the Infrared Astronomical Satellite (IRAS). This survey extends the
1.936 Jy sample of Strauss et al. (1992) from a flux limit of 1.936 Jy at 60
microns to 1.2 Jy. The survey extension consists of 3920 sources in the flux
interval 1.2 - 1.936 Jy, of which 2663 are galaxies with measured redshifts.
Fourteen objects (0.52%) do not have redshifts. The survey covers 87.6% of the
sky. The data for the complete 1.2 Jy survey (the data presented here in
addition to that of Strauss \etal 1992) may be obtained in a machine-readable
form from the National Space Science Data Center and from the anonymous ftp
site given above.Comment: uuencoded postscript file. Figures, data tables, and machine readable
data files can be obtained via anonymous ftp to (192.16.204.30)
ftp://eku.ias.edu/pub/fisher/12jy/12jy.tar.Z (a compressed tar file)
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