258 citations · 1k across the 12 of their papers we have counts for
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Gas-phase CO2 emission toward Cepheus A East: the result of shock activity?
P. Sonnentrucker, E. González-Alfonso, D. A. Neufeld +5
We report the first detection of gas-phase CO2 emission in the star-forming region Cepheus A East, obtained by spectral line mapping of the v2 bending mode at 14.98 micron with the…
Chlorine in the Galactic ISM: Revised f-values with FUSE and STIS
P. Sonnentrucker, S. D. Friedman, D. G. York
Cl I is the atomic species most directly coupled to molecular hydrogen due to its chemistry. Its weakest lines are thereby probably the best tracer of optically thick H2 components…
Abundances and Behavior of 12CO, 13CO, and C2 in Translucent Sight Lines
P. Sonnentrucker, D. E. Welty, J. A. Thorburn +1
Using UV spectra obtained with FUSE, HST, and/or IUE, we determine interstellar column densities of 12CO, 13CO, and/or C_2 for ten Galactic sight lines with 0.37<E(B-V)<0.72. The N…
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…
Spitzer observations of HH54 and HH7-11: mapping the H2 ortho-to-para ratio in shocked molecular gas
David A. Neufeld, Gary J. Melnick, Paule Sonnentrucker +6
We report the results of spectroscopic mapping observations carried out toward the Herbig-Haro objects HH7-11 and HH54 over the 5.2 - 37 micron region using the Infrared Spectrogra…