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A search for Lyman Break Galaxies at z>8 in the NICMOS Parallel Imaging Survey

Alaina L. Henry·Matthew A. Malkan·James W. Colbert·Brian Siana·Harry I. Teplitz·Patrick McCarthy·Lin Yan
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Abstract

We have selected 14 J-dropout Lyman Break Galaxy (LBG) candidates with J110 - H160 > 2.5 from the NICMOS Parallel Imaging Survey. This survey consists of 135 square arcminutes of imaging in 228 independent sight lines, reaching average 5 sigma sensitivities of J110 = 25.8 and H160 = 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 four), 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.

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Alaina L. Henry, Matthew A. Malkan, James W. Colbert, Brian Siana, Harry I. Teplitz, Patrick McCarthy, Lin Yan. 2007-01-02. A search for Lyman Break Galaxies at z>8 in the NICMOS Parallel Imaging Survey. https://doi.org/10.1086/512066

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