Brown Dwarf Disks at Ages of 5-10 Myr
We present Spitzer/IRAC and MIPS 24 μm observations for 28 brown dwarfs in the Upper Scorpius (UppSco) region. We find a disk fraction of 10.7%+8.7% -3.3%. One object shows a small excess at 24 μm but none at shorter wavelengths, and may be a candidate transition disk. Three objects show emission in the 10 μm silicate feature and we present
Riaz, Basmah et al.
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2009