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Photodesorption of Ices II: H2O and D2O
Karin I. Oberg, Harold Linnartz, Ruud Visser +1
Gaseous H2O has been detected in several cold astrophysical environments, where the observed abundances cannot be explained by thermal desorption of H2O ice or by H2O gas phase for…
Detection of CI in absorption towards PKS 1830-211 with the eSMA
Sandrine Bottinelli, A. Meredith Hughes, Ewine F. van Dishoeck +10
We report the first science observations and results obtained with the "extended" SMA (eSMA), which is composed of the SMA (Submillimeter Array), JCMT (James Clerk Maxwell Telescop…
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…
Optical Characterization of a New Young Stellar Population in the Serpens Molecular Cloud
Isa Oliveira, Bruno Merin, Klaus M. Pontoppidan +6
We report on the results of an optical spectroscopic survey designed to confirm the youth and determine the spectral types among a sample of young stellar object (YSO) candidates i…
Photodesorption of ices I: CO, N2 and CO2
Karin I. Oberg, Ewine F. van Dishoeck, Harold Linnartz
A longstanding problem in astrochemistry is how molecules can be maintained in the gas phase in dense inter- and circumstellar regions. Photodesorption is a non-thermal desorption…
An X-ray photometry system I: Chandra ACIS
H. -J. Grimm, J. McDowell, G. Fabbiano +1
We present a system of X-ray photometry for the Chandra satellite. X-ray photometry can be a powerful tool to obtain flux estimates, hardness ratios, and colors unbiased by assumpt…