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Galaxy Morphology from NICMOS Parallel Imaging

Harry I. Teplitz·Jonathan P. Gardner·Eliot M. Malumuth·Sara R. Heap
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Abstract

We present high resolution NICMOS images of random fields obtained in parallel to other HST observations. We present galaxy number counts reaching H=24. The H-band galaxy counts show good agreement with the deepest I- and K-band counts obtained from ground-based data. We present the distribution of galaxies with morphological type to H<23. We find relatively fewer irregular galaxies compared to an I-band sample from the Hubble Deep Field, which we attribute to their blue color, rather than to morphological K-corrections. We conclude that the irregulars are intrinsically faint blue galaxies at z<1.

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Harry I. Teplitz, Jonathan P. Gardner, Eliot M. Malumuth, Sara R. Heap. 1998-08-27. Galaxy Morphology from NICMOS Parallel Imaging. https://doi.org/10.1086/311665

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