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The Spitzer c2d Legacy Results: Star Formation Rates and Efficiencies; Evolution and Lifetimes
Neal J. Evans, Michael M. Dunham, Jes K. Jørgensen +15
(Abridged) The c2d Spitzer Legacy project obtained images and photometry with both IRAC and MIPS instruments for five large, nearby molecular clouds. This paper combines informatio…
Complex Molecules in the L1157 Molecular Outflow
Héctor G. Arce, Joaquín Santiago-García, Jes K. Jørgensen +2
We report the detection of complex organic molecules in the young protostellar outflow L1157. We identify lines from HCOOCH3, CH3CN, HCOOH and C2H5OH at the position of the B1 shoc…
Current Star Formation in the Ophiuchus and Perseus Molecular Clouds: Constraints and Comparisons from Unbiased Submillimeter and Mid-Infrared Surveys. II
Jes Jorgensen, Doug Johnstone, Helen Kirk +3
We present a census of the population of deeply embedded young stellar objects (YSOs) in the Ophiuchus molecular cloud complex based on a combination of Spitzer Space Telescope mid…
The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds. XI. Lupus Observed With IRAC and MIPS
Bruno Merin, Jes Jorgensen, Loredana Spezzi +7
We present c2d Spitzer/IRAC observations of the Lupus I, III and IV dark clouds and discuss them in combination with optical and near-infrared and c2d MIPS data. With the Spitzer d…
The young population of the Chamaeleon II dark cloud
Loredana Spezzi, Juan M. Alcala', Elvira Covino +9
We discuss the results of the optical spectroscopic follow-up of pre-main sequence (PMS) objects and candidates selected in the Chamaeleon II dark cloud based on data from the Spit…
SMA observations of young disks: separating envelope, disk, and stellar masses in class I YSOs
Dave Lommen, Jes Jorgensen, Ewine van Dishoeck +1
(abbreviated) We aim to determine the masses of the envelopes, disks, and central stars of young stellar objects (YSOs) in the Class I stage. We observed the embedded Class I objec…