Activity-Related Radial Velocity Variation in Cool Stars

  title={Activity-Related Radial Velocity Variation in Cool Stars},
  author={Steven H. Saar and Robert A. Donahue},
  journal={The Astrophysical Journal},
Planets have been detected orbiting several solar-type stars with the use of high-precision radial velocity (vr) measurements. While changes in vr can be measured with an accuracy of a few meters per second, there has been relatively little study of how other astrophysical processes, such as magnetic activity, may affect the observed velocities. In this paper, we use published data and simple models to explore the contributions to vr from two activity-related sources, starspots and convective… 
Magnetic Activity-related Radial Velocity Variations in Cool Stars: First Results from the Lick Extrasolar Planet Survey
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Correcting Radial Velocities for Long-Term Magnetic Activity Variations.
  • Saar, Fischer
  • Physics, Geology
    The Astrophysical journal
  • 2000
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