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Spectra of Nearby Galaxies Measured with a New Very Broadband Receiver
Gopal Narayanan, Ronald L. Snell, Neal R. Erickson +4
Three-millimeter-wavelength spectra of a number of nearby galaxies have been obtained at the Five College Radio Astronomy Observatory (FCRAO) using a new, very broadband receiver.…
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…
Spitzer spectral line mapping of supernova remnants: I. Basic data and principal component analysis
David A. Neufeld, David J. Hollenbach, Michael J. Kaufman +4
We report the results of spectroscopic mapping observations carried out toward small (1 x 1 arcmin) regions within the supernova remnants W44, W28, IC443, and 3C391 using the Infra…
Discovery Of A Molecular Outflow in the Haro 6-10 Star-Forming Region
Irena Stojimirović, Gopal Narayanan, Ronald L. Snel
We present high sensitivity 12CO and 13CO (1-0) molecular line maps covering the full extent of the parsec scale Haro~6-10 Herbig-Haro (HH) flow. We report the discovery of a molec…
Spitzer observations of hydrogen deuteride
David A. Neufeld, Joel D. Green, David J. Hollenbach +7
We report the detection of interstellar hydrogen deuteride (HD) toward the supernova remnant IC443, and the tentative detection of HD toward the Herbig Haro objects HH54 and HH7 an…
SWAS observations of comet 9P/Tempel 1 and Deep Impact
Frank Bensch, Gary J. Melnick, David A. Neufeld +3
On 4 July 2005 at 1:52 UT the Deep Impact mission successfully completed its goal to hit the nucleus of 9P/Tempel 1 with an impactor, forming a crater on the nucleus and ejecting m…
Water Absorption From Line-of-Sight Clouds Toward W49A
Rene Plume, Michael J. Kaufman, David A. Neufeld +7
We have observed 6 clouds along the line-of-sight toward W49A using the Submillimeter Wave Astronomy Satellite (SWAS) and several ground-based observatories. The ortho-H2O 1-0 and…
Sensitive Limits on the Water Abundance in Cold Low Mass Molecular Cores
Edwin A. Bergin, Ronald L. Snell
We present SWAS observations of water vapor in two cold star-less clouds, B68 and Core D in rho Ophiuchus. Sensitive non-detections of the 1(10)-1(01) transition of o-H2O are repor…
A Survey of 557 GHz Water Vapor Emission in the NGC 1333 Molecular Cloud
Edwin A. Bergin, Michael J. Kaufman, Gary J. Melnick +2
Using NASA's Submillimeter Wave Astronomy Satellite (SWAS) we have examined the production of water in quiescent and shocked molecular gas through a survey of the 556.936 GHz trans…
Star Formation in Bright Rimmed Clouds. I. Millimeter and Submillimeter Molecular Line Surveys
Christopher H. De Vries, Gopal Narayanan, Ronald L. Snell
We present the results of the first detailed millimeter and submillimeter molecular line survey of bright rimmed clouds, observed at FCRAO in the CO (J=1-0), C18O (J=1-0), HCO+ (J=…
The Equilibrium State of Molecular Regions in the Outer Galaxy
M. H. Heyer, J. M. Carpenter, R. L. Snell
A summary of global properties and an evaluation of the equilibrium state of molecular regions in the outer Galaxy are presented from the decomposition of the FCRAO Outer Galaxy Su…
Water Abundance in Molecular Cloud Cores
R. L. Snell, J. E. Howe, M. L. N. Ashby +17
We present Submillimeter Wave Astronomy Satellite (SWAS) observations of the 1_{10}-1_{01} transition of ortho-water at 557 GHz toward 12 molecular cloud cores. The water emission…
Submillimeter Wave Astronomy Satellite Observations of Extended Water Emission in Orion
R. L. Snell, J. E. Howe, M. L. N. Ashby +17
We have used the Submillimeter Wave Astronomy Satellite to map the ground-state 1_{10}-1_{01} transition of ortho-water at 557 GHz in the Orion molecular cloud. Water emission was…
Embedded Stellar Clusters in the W3/W4/W5 Molecular Cloud Complex
John M. Carpenter, Mark H. Heyer, Ronald L. Snell
We analyze the embedded stellar content in the vicinity of the W3/W4/W5 HII regions using the FCRAO Outer Galaxy 12CO(J=1-0) Survey, the IRAS Point Source Catalog, published radio…