209 citations · 728 across the 26 of their papers we have counts for
3 papers · 1 filter
Excitation of emission lines by fluorescence and recombination in IC 418
V. Escalante, C. Morisset, L. Georgiev
We predict intensities of lines of CII, NI, NII, OI and OII and compare them with a deep spectroscopic survey of IC 418 to test the effect of excitation of nebular emission lines b…
Wind structure and luminosity variations in the WR/LBV HD 5980
Leonid N Georgiev, Gloria Koenigsberger, D John Hillier +3
Over the past 40 years, the massive LBV/WR system HD 5980 in the Small Magellanic Cloud has undergone a long-term S Doradus type variability cycle and two brief and violent eruptio…
Synchronization of the G Giant Rotation in the Symbiotic Binary StHa 190?
M. Cikała, M. Mikołajewski, T. Tomov +5
We present an analysis of high resolution spectral observations of the symbiotic star StHa 190. A 30 days period has been derived from radial velocities of the G-type absorption li…