AAS 205th Meeting, 9-13 January 2005
Session 17 Ae Be and Debris Disks: Searches Lead to High Angular Resolution Studies
Poster, Monday, January 10, 2005, 9:20am-6:30pm, Exhibit Hall

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[17.05] Where are the M Dwarf Exo-Zodiacal Disks?

P. Plavchan, M. Jura, S. J. Lipscy (University of California - Los Angeles)

We present 11.7-micron observations of nine late-type dwarfs obtained at the Keck I 10-meter telescope in December 2002 and April 2003. Our targets were selected for their youth or apparent IRAS 12-micron excess. For all nine sources, excess infrared emission is not detected. We find that stellar wind drag can easily dominate the circumstellar grain removal and plausibly explain the dearth of M Dwarf systems with infrared excesses.

The author(s) of this abstract have provided an email address for comments about the abstract: plavchan@astro.ucla.edu

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Bulletin of the American Astronomical Society, 36 5
© 2004. The American Astronomical Society.