601 citations · 3.6k across the 47 of their papers we have counts for
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Orion's Bar: Physical Conditions across the Definitive H+ / H0 / H2 Interface
E. W. Pellegrini, J. A. Baldwin, G. J. Ferland +2
Previous work has shown the Orion Bar to be an interface between ionized and molecular gas, viewed roughly edge on, which is excited by the light from the Trapezium cluster. Much o…
Independent Emission and Absorption Abundances for Planetary Nebulae
Robert Williams, Edward B. Jenkins, Jack A. Baldwin +4
Emission-line abundances have been uncertain for more than a decade due to unexplained discrepancies in the relative intensities of the forbidden lines and weak permitted recombina…
s-Process Abundances in Planetary Nebulae
Brian Sharpee, Yong Zhang, Robert Williams +5
The s-process should occur in all but the lower mass progenitor stars of planetary nebulae, and this should be reflected in the chemical composition of the gas which is expelled to…
A Magnetically-Supported Photodissociation Region in M17
E. W. Pellegrini, J. A. Baldwin, C. L. Brogan +6
The southwestern (SW) part of the Galactic H II region M17 contains an obscured ionization front that is most easily seen at infrared and radio wavelengths. It is nearly edge-on, t…