II. Radial-velocity noise induced by magnetic cycles
X. Dumusque, C. Lovis, S. Udry, N. C. Santos
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.
Keywords
planetary systems, stars: activity, techniques: radial velocities
The Astrophysics of Planetary Systems: Formation, Structure, and Dynamical Evolution
Proceedings IAU Symposium No. 276
A. Sozzetti, M. G. Lattanzi, A. P. Boss
Cambridge University Press
276
Volume 6, Page 530
2011 November
