446 citations · 1.9k across the 76 of their papers we have counts for
8 papers · 2 filters
Physical Conditoins in Orion's Veil II: A Multi-Component Study of the Line of Sight Toward the Trapezium
N. P. Abel, G. J. Ferland, C. R. O'Dell +2
Orion's Veil is an absorbing screen that lies along the line of sight to the Orion H II region. It consists of two or more layers of gas that must lie within a few parsecs of the T…
Physical conditions in the ISM towards HD185418
Gargi Shaw, G. J. Ferland, R. Srianand +1
We have developed a complete model of the hydrogen molecule as part of the spectral simulation code Cloudy. Our goal is to apply this to spectra of high-redshift star-forming regio…
Molecular hydrogen in the diffuse interstellar medium at high redshift
Raghunathan Srianand, Gargi Shaw, Gary Ferland +2
Physical conditions within DLAs can reveal the star formation history, determine the chemical composition of the associated ISM, and hence document the first steps in the formation…
The VLT-UVES survey for molecular hydrogen in high-redshift damped Lyman-alpha systems: Physical conditions in the neutral gas
Raghunathan Srianand, Patrick Petitjean, Cedric Ledoux +2
We study the physical conditions in DLAs, using a sample of 33 systems toward 26 QSOs acquired for a recently completed survey of H_2 by Ledoux et al. (2003). We use the column den…
Physical conditions in the Homunculus
Gary J. Ferland, Nick Abel, Kris Davidson +1
Conditions within the Homunculus nebula around Eta Car are determined by many of the same physical processes that occur in molecular clouds in the interstellar medium. But there is…
Theoretical He I Emissivities in the Case B Approximation
R. L. Porter, R. P. Bauman, G. J. Ferland +1
We calculate the He I case B recombination cascade spectrum using improved radiative and collisional data. We present new emissivities over a range of electron temperatures and den…