Search Publications

Dynamic phenomena on the RS Canum Venaticorum binary II Pegasi in August 1989. I. Observational data.

Bromage, G. E.; Doyle, J. G.; Linsky, J. L. +22 more

Observational results are given for two flares in Pi Pegasi that were detected by the GINGA and IUE satellites, as well as by ground-based Johnson U-band photometry and optical spectroscopy. The best-fitting results were obtained for a combination of a single-temperature plasma together with a power law; for a two-temperature model, the temperatur…

Spectroscopic study of the atmospheric eclipsing binary VV Cephei.

Hack, M.; Boehm, C.; Engin, S. +3 more

We present the results of the study of 49 high dispersion spectrograms obtained at the Haute-Provence Observatory from July 1967 to January 1981, including the epoch of the eclipse of 1977. The radial velocity, intensity and profile variations of several absorption and emission lines are given. The ratio between the fluxes of the M2 giant and the …

The spectrum of the VV Cephei star KQ Puppis (Boss 1985). II. Atlas of the optical and ultraviolet spectrum.

Altamore, A.; Rossi, C.; Baratta, G. B. +1 more

An Atlas is presented of the high-resolution spectrum of the VV Cep M1-2Iab + Be variable KQ Pup (Boss 1985). The Atlas is based on UV observations obtained in 1979 with the IUE (covering the region from 1223 A to 3228 A) and on coude plates covering the blue to the optical UV. The equivalent widths and radial velocities of the main features prese…