The CARMENES search for exoplanets around M dwarfs. Radial velocities and activity indicators from cross-correlation functions with weighted binary masks

16 Mar 2020 Lafarga M. Ribas I. Lovis C. Perger M. Zechmeister M. Bauer F. F. Kürster M. Cortés-Contreras M. Morales J. C. Herrero E. Rosich A. Baroch D. Reiners A. Caballer J. A. Quirrenbach A. Amado P. J. Alacid J. M. Béjar V. J. S. Dreizler S. Hatzes A. P. Henning T. Jeffers S. V. Kaminski A. Montes D. Pedraz S. Rodríguez-López C. Schmitt J. H. M. M.

For years, the standard procedure to measure radial velocities (RVs) of spectral observations consisted in cross-correlating the spectra with a binary mask, that is, a simple stellar template that contains information on the position and strength of stellar absorption lines. The cross-correlation function (CCF) profiles also provide several indicators of stellar activity... (read more)

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  • INSTRUMENTATION AND METHODS FOR ASTROPHYSICS
  • EARTH AND PLANETARY ASTROPHYSICS
  • SOLAR AND STELLAR ASTROPHYSICS