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Long-Period Radial-Velocity Variations of Arcturus
Published online by Cambridge University Press: 12 April 2016
Extract
We have measured the relative radial velocity of Arcturus using the HF absorption cell technique on 43 occasions from 1981 through 1985. The range of our velocities is 500 m s-1, which is much larger than our estimated internal errors (typically 10 m s-1). This confirms the radial velocity variability of Arcturus that has been previously reported by our group and others based on shorter observational time spans.
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- 2. Model Photospheres and Chemical Compositions
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- Copyright © Cambridge University Press 1989