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- University of Colorado BoulderUS64 papers
- University of TorontoCA14 papers
- California Institute of TechnologyUS13 papers
- University of California, BerkeleyUS13 papers
- Goddard Space Flight CenterUS11 papers
- University of ChicagoUS11 papers
- University of ArizonaUS10 papers
- The University of Texas at AustinUS9 papers
- University of VictoriaCA9 papers
- Center for Astrophysics Harvard & SmithsonianUS8 papers
- National Radio Astronomy ObservatoryUS8 papers
- Space Telescope Science InstituteUS8 papers
5 papers · 1 filter
Galactic H2CO Densitometry I: Pilot survey of Ultracompact HII regions and methodology
Adam Ginsburg, Jeremy Darling, Cara Battersby +2
We present a pilot survey of 21 lines of sight towards UCHII regions in the H2CO 1-1 (6cm) and 2-2 (2cm) transitions, using the H2CO centimeter lines as a molecular gas densitomete…
The initial conditions of high-mass star formation: radiative transfer models of IRDCs seen in the Herschel Hi-GAL survey
L. A. Wilcock, J. M. Kirk, D. Stamatellos +13
The densest infrared dark clouds (IRDCs) may represent the earliest observable stage of high-mass star formation. These clouds are very cold, hence they emit mainly at far-infrared…
Spitzer Mapping of PAHs and H2 in Photodissociation Regions
Brian T. Fleming, Kevin France, Roxana E. Lupu +1
The mid-infrared (MIR) spectra of dense photodissociation regions (PDRs) are typically dominated by emission from polycyclic aromatic hydrocarbons (PAHs) and the lowest pure rotati…
Observational Properties of Rotationally Excited Molecular Hydrogen In Translucent Lines of Sight
Adam G. Jensen, Theodore P. Snow, George Sonneborn +1
The {\it Far Ultraviolet Spectroscopic Explorer} ({\it FUSE}) has allowed precise determinations of the column densities of molecular hydrogen ($\Hmol$) in Galactic lines of sight…
Radiation pressure and absorption in AGN: results from a complete unbiased sample from Swift
A. C. Fabian, R. V. Vasudevan, R. F. Mushotzky +1
Outward radiation pressure can exceed the inward gravitational pull on gas clouds in the neighbourhood of a luminous Active Galactic Nucleus (AGN). This creates a forbidden region…