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SiO outflows in high-mass star forming regions: A potential chemical clock?
A. López-Sepulcre, C. M. Walmsley, R. Cesaroni +7
Some theoretical models propose that O-B stars form via accretion, in a similar fashion to low-mass stars. Jet-driven molecular outflows play an important role in this scenario, an…
Methane in the atmosphere of the transiting hot Neptune GJ436b?
J. -P. Beaulieu, G. Tinetti, D. M. Kipping +14
We present an analysis of seven primary transit observations of the hot Neptune GJ436b at 3.6, 4.5 and m obtained with the Infrared Array Camera (IRAC) on the Spitzer Space Te…
The large-scale disk fraction of brown dwarfs in the Taurus cloud as measured with Spitzer
J. -L. Monin, S. Guieu, C. Pinte +14
Aims. The brown dwarf (BD) formation process has not yet been completely understood. To shed more light on the differences and similarities between star and BD formation processes,…
Circumstellar Structure around Evolved Stars in the Cygnus-X Star Formation Region
Kathleen E. Kraemer, Joseph L. Hora, Michael P. Egan +15
We present observations of newly discovered 24 micron circumstellar structures detected with the Multiband Imaging Photometer for Spitzer (MIPS) around three evolved stars in the C…
The Mass Distributions of Starless and Protostellar Cores in Gould Belt Clouds
S. I. Sadavoy, J. Di Francesco, S. Bontemps +12
Using data from the SCUBA Legacy Catalogue (850 um) and Spitzer Space Telescope (3.6 - 70 um), we explore dense cores in the Ophiuchus, Taurus, Perseus, Serpens, and Orion molecula…