352 citations · 3.6k across the 53 of their papers we have counts for
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An Alternative Accurate Tracer of Molecular Clouds: The "-Factor"
Stella S. R. Offner, Thomas G. Bisbas, Tom A. Bell +1
We explore the utility of CI as an alternative high-fidelity gas mass tracer for Galactic molecular clouds. We evaluate the X-factor for the 609 m carbon line, the an…
Modeling the Atomic-to-Molecular Transition and Chemical Distributions of Turbulent Star-Forming Clouds
Stella S. R. Offner, Thomas G. Bisbas, Serena Viti +1
We use 3D-PDR, a three-dimensional astrochemistry code for modeling photodissociation regions (PDRs), to post-process hydrodynamic simulations of turbulent, star-forming clouds. We…
3D-PDR: A new three-dimensional astrochemistry code for treating Photodissociation Regions
T. G. Bisbas, T. A. Bell, S. Viti +2
Photodissociation regions (PDRs) define the transition zone between an ionized and a dark molecular region. They consist of neutral gas which interacts with far-ultraviolet radiati…
Herschel observations of Extra-Ordinary Sources: Methanol as a probe of physical conditions in Orion KL
S. Wang, E. A. Bergin, N. R. Crockett +45
We have examined methanol emission from Orion KL with of the {\em Herschel}/HIFI instrument, and detected two methanol bands centered at 524 GHz and 1061 GHz. The 524 GHz methanol…
Herschel observations of EXtra-Ordinary Sources: The Terahertz spectrum of Orion KL seen at high spectral resolution
N. R. Crockett, E. A. Bergin, S. Wang +60
We present the first high spectral resolution observations of Orion KL in the frequency ranges 1573.4 - 1702.8 GHz (band 6b) and 1788.4 - 1906.8 GHz (band 7b) obtained using the HI…
Ortho-to-para ratio of interstellar heavy water
C. Vastel, C. Ceccarelli, E. Caux +65
Despite the low elemental deuterium abundance in the Galaxy, enhanced molecular D/H ratios have been found in the environments of low-mass star forming regions, and in particular t…