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T. L. Huard, P. Myers (Harvard-Smithsonian CfA), L. Crews (University of Tennessee at Martin), D. Murphy (Carnegie Institution of Washington), N. Evans (University of Texas at Austin)
During the past year, we have obtained very deep near-infrared observations of more than a dozen dense molecular cloud cores, including both starless and star-forming cores. In addition, the Cores-to-Disks Spitzer Legacy team has observed these cores in the mid-infrared. By comparing near-infrared and mid-infrared colors of background stars, we have derived an infrared reddening law for such dense environments. We find that the reddening law is significantly flatter than in the more diffuse interstellar medium, and depends on the amount of extinction within the core. We will quantify the results for these cores and discuss some implications for the dust grains.
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.