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On the origin of the HI line emission associated with massive young stellar objects
The problem of interpreting the H I line emission associated with massive young stellar objects is addressed by comparing results of LTE calculations of H I Br-alpha and Pf-gamma profiles with observations of the exciting ...
Variability in the UV resonance lines of the cataclysmic variable V795 Herculis (PG-1711 + 336)
Variability in the UV resonance lines from the cataclysmic variable V795 Her is investigated on the basis of a total of 28 IUE SWP low-resolution spectra. Significant line profile fluctuations are evident in the C IV 1549 ...
Time-dependence of the UV resonance lines in the cataclysmic variables YZ CNC, IR GEM and V3885-SGR
Orbital variations are observed in the UV resonance lines of YZ Cnc, IR Gem and V3885 Sgr. Optical spectroscopic observations of YZ Cnc show that the maximum absorption in the UV lines occurs about 0.7-0.8 orbits after the ...