IUE observations of cool stars: α Aurigae, HR1099, λ Andromedae, and ε Eridani

  title={IUE observations of cool stars: $\alpha$ Aurigae, HR1099, $\lambda$ Andromedae, and $\epsilon$ Eridani},
  author={Jeffrey L. Linsky and Thomas R. Ayres and Gibor Basri and Nancy Dunlap Morrison and Albert Boggess and Francis Schiffer and A. Holm and Angelo Cassatella and Andr{\'e} Heck and Ferdinando Duccio Macchetto and David J. Stickland and R. J. Wilson and C. Blanco and Andrea K. Dupree and Carole Jordan and Robert Farquhar Wing},
Initial IUE observations of four cool stars are reported. Observed fluxes and surface fluxes are given for several UV emission lines in the spectral range 1,175–2,000 Å, obtained at low and high dispersion with the short-wavelength spectrograph and camera. These lines are formed in the outer atmospheres of these stars, in regions presumably analogous to the solar chromosphere and transition region. The surface fluxes in the lines increase along the sequence: quiet Sun, ε, Eri, λ And, α Aur, and… 
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