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Deep imaging of the field of the z = 4.9 quasar PC 1247+3406, and faint galaxy counts in the K band with the Keck telescopeWe present deep images in the K(sub s) band of the field of the quasar PC 1247+3406 at z = 4.897, obtained using the near-infrared camera on the W. M. Keck telescope. A number of faint sources have been detected, some of which appear to be quite red. Their nature and redshifts remain uncertain at this time. These data are combined with deep Keck infrared images of five additional fields and present galaxy counts reaching down to K(sub s) = 22 mag, comparable to the deepest K-band surveys to date. The data presented here are in good agreement with the Hawaii Deep Survey and represent the first independent verification of those results. The slope of the log N-log S relation derived from these data agrees well with the Hawaii Deep Survey, while the counts are slightly higher, especially at the faintest levels probed here. This may be due to a presence of groups or clusters around the target objects at high redshifts.
Document ID
19950037944
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Soifer, B. T.
(California Inst. of Technology, Pasadena, CA United States)
Matthews, K.
(California Inst. of Technology, Pasadena, CA United States)
Djorgovski, S.
(California Inst. of Technology, Pasadena, CA United States)
Larkin, J.
(California Inst. of Technology, Pasadena, CA United States)
Graham, J. R.
(California Inst. of Technology, Pasadena, CA United States)
Harrison, W.
(California Association for Research in Astronomy, Kamuela, HI United States)
Jernigan, G.
(Univ. of California, Berkeley, CA United States)
Lin, S.
(California Inst. of Technology, Pasadena, CA United States)
Nelson, J.
(Univ. of California, Berkeley, CA United States)
Neugebauer, G.
(California Inst. of Technology, Pasadena, CA United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1994
Publication Information
Publication: Astrophysical Journal, Part 2 - Letters
Volume: 420
Issue: 1
ISSN: 0004-637X
Subject Category
Astronomy
Accession Number
95A69543
Distribution Limits
Public
Copyright
Other

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