AAS 207th Meeting, 8-12 January 2006
Session 179 Evolution of Galaxies, and Galaxies Surveys at Low Redshift
Poster, Thursday, 9:20am-4:00pm, January 12, 2006, Exhibit Hall

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[179.06] The Infrared Properties of Normal Galaxies from 2MASS

C. M. Hutcheson (University of Arizona), J. P. Huchra (Harvard-Smithsonian CfA), L. M. Macri (NOAO), T. H. Jarrett (IPAC), N. Martimbeau (Harvard-Smithsonian CfA)

We have measured classical morphological types and redshifts for nearly all galaxies above |\textrm{b}|=10\circ in the 2\mu~ All-Sky Survey to a limit of \textrm{K}S=11.25. There are ~20,000 galaxies in this sample. We find essentially no correlation between color and morphological type after correcting for extinction and the K-correction. However there is, as expected, a strong relationship between minor-to-major axis ratio and morphological type. We present an empirical calculation of the K-correction and find strong evidence of internal reddening in early type spiral galaxies. Finally, we present luminosity functions and their Schechter function fits.

This paper uses data from the Two Micron All-Sky Survey, a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. We thank the other members of the 2MASS Redshift Survey team. This work was supported by NSF Grant AST-0406906 and the NSF REU Program at SAO.

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