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arXiv · 1011.5581

Stellar noise and planet detection. II. Radial-velocity noise induced by magnetic cycles

X. Dumusque·C. Lovis·S. Udry·N. C. Santos
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Abstract

For the 451 stars of the HARPS high precision program, we study correlations between the radial-velocity (RV) variation and other parameters of the Cross Correlated Function (CCF). After a careful target selection, we found a very good correlation between the slope of the RV-activity index (log(R'HK) correlation and the Teff for dwarf stars. This correlation allow us to correct RV from magnetic cycles given the activity index and the Teff.

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X. Dumusque, C. Lovis, S. Udry, N. C. Santos. 2010-11-25. Stellar noise and planet detection. II. Radial-velocity noise induced by magnetic cycles. https://doi.org/10.1017/s1743921311021090

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