Evolution of Brown Dwarf Disks: A Spitzer Survey in Upper Scorpius

We have carried out a Spitzer survey for brown dwarf disks in the similar to 5 Myr old Upper Scorpius (UpSco) star-forming region, using IRS spectroscopy from 8 to 12 mu m and MIPS photometry at 24 mu m. Our sample consists of 35 confirmed very low mass members of UpSco. Thirteen objects in this sam...

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Veröffentlicht in:	The Astrophysical journal 2007-05, Vol.660 (2), p.1517-1531
Hauptverfasser:	Scholz, Alexander, Jayawardhana, Ray, Wood, Kenneth, Meeus, Gwendolyn, Stelzer, Beate, Walker, Christina, O’Sullivan, Mark
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Earth, ocean, space Exact sciences and technology
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