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20022009
most citedUltraviolet Survey of CO and H_2 in Diffuse Molecular Clouds: The Reflection of Two Photochemistry Regimes in Abundance Relationships

283 citations · 475 across the 6 of their papers we have counts for

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Showing 2005Show all

6 papers · 1 filter

astro-ph2005

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…

astro-ph2005

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…

astro-ph2005

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…

astro-ph2005

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…

astro-ph2005

The H II Region/PDR Connection: Self-Consistent Calculations of Physical Conditions in Star-Forming Regions

N. P. Abel, G. J. Ferland, G. Shaw +1

We have performed a series of calculations designed to reproduce infrared diagnostics used to determine physical conditions in star forming regions. We self-consistently calculate…

astro-ph2005

Molecular Hydrogen in Star-forming regions: implementation of its micro-physics in Cloudy

G. Shaw, G. J. Ferland, N. P. Abel +2

Much of the baryonic matter in the Universe is in the form of H2 which includes most of the gas in galactic and extragalactic interstellar clouds. Molecular hydrogen plays a signif…