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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…
Detection of Acetylene toward Cepheus A East with Spitzer
P. Sonnentrucker, E. González-Alfonso, D. A. Neufeld
The first map of interstellar acetylene (C2H2) has been obtained with the infrared spectrograph onboard the Spitzer Space Telescope. A spectral line map of the vibration-rota…
Water vapor emission from IRC+10216 and other carbon-rich stars: model predictions and prospects for multitransition observations
Eduardo González-Alfonso, David A. Neufeld, Gary J. Melnick
We have modeled the emission of H2O rotational lines from the extreme C-rich star IRC+10216. Our treatment of the excitation of H2O emissions takes into account the excitation of H…
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…
ExoPTF Science Uniquely Enabled by Far-IR Interferometry: Probing the Formation of Planetary Systems, and Finding and Characterizing Exoplanets
David Leisawitz, Tom Armstrong, Chad Bender +28
By providing sensitive sub-arcsecond images and integral field spectroscopy in the 25 - 400 micron wavelength range, a far-IR interferometer will revolutionize our understanding of…
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…