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Chemical Diversity in High-Mass Star Formation
H. Beuther, Q. Zhang, E. A. Bergin +1
Massive star formation exhibits an extremely rich chemistry. However, not much evolutionary details are known yet, especially at high spatial resolution. Therefore, we synthesize p…
Water, O2 and Ice in Molecular Clouds
David Hollenbach, Michael J. Kaufman, Edwin A. Bergin +1
We model the temperature and chemical structure of molecular clouds as a function of depth into the cloud, assuming a cloud of constant density n illuminated by an external FUV (6…
Detection of Extended Hot Water in the Outflow from NGC 2071
Gary J. Melnick, Volker Tolls, David A. Neufeld +5
We report the results of spectroscopic mapping observations carried out toward a ~1 min x 1 min region within the northern lobe of the outflow from NGC 2071 using the Infrared Spec…
SWAS Observations of Water in Molecular Outflows
J. Franklin, R. L. Snell, M. J. Kaufman +4
We present SWAS detections of the ground-state 1(10)-1(01) transition of o-H2O at 557 GHz in 18 molecular outflows. These results are combined with ground-based observations of the…
Fully Sampled Maps of Ices and Silicates in Front of Cepheus A East with Spitzer
P. Sonnentrucker, D. A. Neufeld, P. A. Gerakines +5
We report the first fully sampled maps of the distribution of interstellar CO2 ices, H2O ices and total hydrogen nuclei, as inferred from the 9.7 micron silicate feature, toward th…
Using Chemistry to Unveil the Kinematics of Starless Cores: Complex Radial Motions in Barnard 68
Sébastien Maret, Edwin A. Bergin, Charles J. Lada
We present observations of 13CO, C18O, HCO+, H13CO+, DCO+ and N2H+ line emission towards the Barnard 68 starless core. The line profiles are interpreted using a chemical network co…