35 citations · 68 across the 3 of their papers we have counts for
3 papers
astro-ph.GA2025★ 2 cited
Large Scale Wind Driven Structures in the Orion Nebula
C. R. O'Dell, N. P. Abel
A study of [C II] 158 micron and HI 21-cm spectroscopic images plus high velocity resolution optical and ultraviolet spectra has shown the structure of the Orion Nebula to be diffe…
astro-ph.GA2012★ 31 cited
Pumping up the [N I] nebular lines
G. J. Ferland, W. J. Henney, C. R. O'Dell +3
The optical [N I] doublet near 5200 Å is anomalously strong in a variety of emission-line objects. We compute a detailed photoionization model and use it to show that pumping by fa…
astro-ph2007★ 35 cited
Determination of the Physical Conditions of the Knots in the Helix Nebula from Optical and Infrared Observations
C. R. O'Dell, W. J. Henney, G. J. Ferland
[Abridged] We use new HST and archived images to clarify the nature of the knots in the Helix Nebula. We employ published far infrared spectrophotometry and existing 2.12 micron im…