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A Search for Variability in the Spectral Line Shapes of tau Bootis: Does this Star Really Have a Planet?
Artie P. Hatzes, William D. Cochran
An analysis is made of the spectral line shapes of tau Bootis using high resolution (0.026 A) and high signal-to-noise (S/N~400) data in an effort to confirm the planet hypothesis…
On the Nature of the Radial Velocity Variability of Aldebaran: A Search for Spectral Line Bisector Variations
Artie P. Hatzes, William D. Cochran
The shape of the Ti I 6303.8 A spectral line of Aldebaran as measured by the line bisector was investigated using high signal-to-noise, high resolution data. The goal of this study…
Doppler Imagery of the Spotted RS CVn Star HR 1099 (= V711 Tau) from 1981 - 1992
Steven S. Vogt, Artie P. Hatzes, Anthony A. Misch +1
We present 23 Doppler images of the spotted RS CVn star HR 1099 from 1981 to 1992. HR 1099 shows a large cool polar spot which has persisted for the 11 years of this study and othe…