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A search for Lyman break galaxies at z > 8 in the NICMOS Parallel Imaging Survey

Henry, Alaina L. and Malkan, Matthew A. and Colbert, James W. and Siana, Brian and Teplitz, Harry I. and McCarthy, Patrick and Yan, Lin (2007) A search for Lyman break galaxies at z > 8 in the NICMOS Parallel Imaging Survey. Astrophysical Journal Letters, 656 (1). L1-L4. ISSN 2041-8205.

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We have selected 14 J-dropout Lyman break galaxy (LBG) candidates with J_(110) - H_(160) ≥ 2.5 from the NICMOS Parallel Imaging Survey. This survey consists of 135 arcmin^2 of imaging in 228 independent sight lines, reaching average 5 σ sensitivities of J_(110) = 25.8 and H_(160) = 25.6 (AB). Distinguishing these candidates from dust-reddened star-forming galaxies at z ~ 2-3 is difficult and will require longer wavelength observations. We consider the likelihood that any J-dropout LBGs exist in this survey and find that if L^*_(z=9.5) is significantly brighter than L^*_(z=6) (a factor of 4), then a few J-dropout LBGs are likely. A similar increase in luminosity has been suggested by Eyles et al. and Yan et al., but the magnitude of this increase is uncertain.

Item Type:Article
Related URLs:
URLURL TypeDescription
Henry, Alaina L.0000-0002-6586-4446
Malkan, Matthew A.0000-0001-6919-1237
Siana, Brian0000-0002-4935-9511
Teplitz, Harry I.0000-0002-7064-5424
Yan, Lin0000-0003-1710-9339
Additional Information:© 2007 The American Astronomical Society. Received 2006 October 19; accepted 2006 December 26; published 2007 January 22. This research was supported by NASA through Hubble Space Telescope Guest Observer grants 9865 and 10226. We are grateful to R. Thompson for helpful comments that improved this manuscript.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Subject Keywords:galaxies: evolution; galaxies: formation; galaxies: high-redshift
Issue or Number:1
Record Number:CaltechAUTHORS:HENapjl07
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13417
Deposited By: Tony Diaz
Deposited On:08 May 2009 22:23
Last Modified:03 Oct 2019 00:37

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