352 citations · 1.6k across the 43 of their papers we have counts for
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Exploring Case B I: The Footprints of Hidden Radiation Fields in H I Balmer Decrements
Maryam Dehghanian, Fransisco Guzman, Peter van Hoof +2
Theory predicts that H I emission from photoionized clouds should lie close to the Case B limit established by Menzel and Baker, and observations of nearby nebulae have largely con…
The 23.01 release of Cloudy
Chamani M. Gunasekera, Peter A. M. van Hoof, Marios Chatzikos +1
We announce the C23.01 update of Cloudy. This corrects a simple coding error, present since 1990, in one routine that required a conversion from the line-center to the mean…
First images of the molecular gas around a born-again star revealed by ALMA
Daniel Tafoya, Jesús A. Toalá, Ramlal Unnikrishnan +7
Born-again stars allow probing stellar evolution in human timescales and provide the most promising path for the formation of hydrogen-deficient post-asymptotic giant branch object…
A wind-based unification model for NGC 5548: spectral holidays, non-disk emission, and implications for changing-look quasars
M. Dehghanian, G. J. Ferland, B. M. Peterson +9
The 180-day Space Telescope and Optical Reverberation Mapping campaign on NGC 5548 discovered an anomalous period, the broad-line region (BLR) holiday, in which the emission lines…
Space Telescope and Optical Reverberation Mapping Project. X. Understanding the Absorption-Line Holiday in NGC 5548
M. Dehghanian, G. J. Ferland, G. A. Kriss +27
The flux variations in the emission lines in active galactic nuclei (AGNs) are driven by variations in the ionizing continuum flux --which are usually reflected in the observable U…
The 2017 Release of Cloudy
G. J. Ferland, M. Chatzikos, F. Guzmán +8
We describe the 2017 release of the spectral synthesis code Cloudy. A major development since the previous release has been exporting the atomic data into external data files. This…