... have been supplemented by archival ultraviolet and visual spec- trophotometry and ... of V652 Her Masses measured without reference to the ultraviolet uxes turn out to be ... New models and new ultraviolet observations are required. ...
... Measurements of their spectra in ultraviolet light are sensitive to small changes in temperature. ... An analysis of about 150 spectra obtained with the International Ultraviolet Explorer (IUE) was begun with the help of summer ...
... Abstract . Full Paper . 303 Ultraviolet observations of the hot R CrB star, V348 Sgr, during a deep minimum . ... 286 Ultraviolet and Optical Flares on Gl 866 . D. Jevremovic, C.J. Butler, S.A. Drake, D. O'Donoghue and F. van Wyk . ...
... Moreover the radial-velocity amplitudes are small, the periods are long, and ultraviolet photometry is essential. ... Jeffery et al. (2000) succeeded in obtaining nearly contiguous ultraviolet photometry and radial velocities ( ) of three PVTel ...
... Full Paper - 1.3MB PDF . 470 An analysis of ultraviolet spectra of Extreme Helium Stars and new clues to their origins . ... Full Paper - PDF . 487 GALEX high time-resolution ultraviolet observations of sMe flare events . ...
... While it is visible in optical and infrared light, the hotter subdwarf can only be seen in ultraviolet light. ... shows a simulation of how the system might appear if you could see in both optical and ultraviolet light at the same time ...
... Electron density diagnostics for solar ultraviolet lines of O v E. O'Shea (e.oshea ... data obtained with the Solar Ultraviolet Measurements of Emitted Radiation (sumer ... Keywords: Sun: Density diagnostics: Ultraviolet: sohosumer 1. ...
... 207 Flare energetics: Analysis of a large flare on YZ CMi observed simultaneously in the ultraviolet, optical and radio . ... V. Ultraviolet excess emission in active M dwarfs . E.R. Houdebine M. Mathioudakis, J.G. Doyle and B.H. Foing . ...