A Multi-Wavelength Perspective of Flares on HR 1099: Four Years of   Coordinated Campaigns
  We report on four years of multiple wavelength observations of the RS CVn system V711 Tau (HR 1099) from 1993, 1994, 1996, and 1998. This combination of radio, ultraviolet, extreme ultraviolet, and X-ray observations allows us to view, in the most comprehensive manner currently possible, the coronal and upper atmospheric variability of this active binary system. We report on the changing activity state of the system as recorded in the EUV and radio across the four years of the observations, and study the high energy variability using an assemblage of X-ray telescopes. (Longer abstract in paper). 
R. A. Osten, A. Brown, T. R. Ayres, S. A. Drake, E. Franciosini, R.   Pallavicini, G. Tagliaferri, R. T. Stewart, S. L. Skin...