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T.N. Gautier, K.R. Stapelfeldt (Jet Propulsion Laboratory, California Institute of Technology), L.M. Rebull (Spitzer Science Center, California Institute of Technology), M.W. Werner, C.R. Lawrence (Jet Propulsion Laboratory, California Institute of Technology)
We present Spitzer photometry at 24 and 70 microns for 15 members of the eta Cha young association. With an age of only 5-9 million years, this association bridges a crucial period in the dissipation of protoplanetary disks. The observations have enough sensitivity to detect the stellar photospheres at 24 microns, and the presence of debris disks akin to beta Pictoris at 70 microns. We report on these results, and a search for any heretofore unrecognized cluster members suggested by their infrared excess.
This work is based on observations made with the Spitzer Space Telescope, which is operated by the Jet Propulsion Laboratory, California Institute of Technology under a contract with NASA. Support for this work was provided by NASA.
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Bulletin of the American Astronomical Society, 37 #4
© 2005. The American Astronomical Soceity.