352 citations · 1.6k across the 43 of their papers we have counts for
3 papers · 1 filter
Radiative cooling in collisionally and photo ionized plasmas
M. L. Lykins, G. J. Ferland, Ryan L. Porter +3
We discuss recent improvements in the calculation of the radiative cooling in both collisionally and photo ionized plasmas. We are extending the spectral simulation code Cloudy so…
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…
Hydrogen Two-Photon Continuum Emission from the Horseshoe Filament in NGC 1275
R. M. Johnstone, R. E. A. Canning, A. C. Fabian +5
Far ultraviolet emission has been detected from a knot of Halpha emission in the Horseshoe filament, far out in the NGC 1275 nebula. The flux detected relative to the brightness of…