CARMENES input catalog of M dwarfs: VI. A time-resolved Ca II H&K catalog from archival data

• Published in: Astronomy & Astrophysics
• Main Authors: Perdelwitz, V., Mittag, M., Tal-Or, L., Schmitt, J. H. M. M., Caballero, J. A., Jeffers, S.V., Reiners, A., Schweitzer, A., Trifonov, T., Ribas, I., Quirrenbach, A., Amado, Pedro J., Seifert, W., Cifuentes, C., Cortés-Contreras, M., Montes, D., Revilla, D., Skrzypinski, S. L.
• Other Authors: Ministerio de Economía y Competitividad (España), Ministerio de Ciencia, Innovación y Universidades (España)
• Format: Article in Journal/Newspaper
• Language: English
• Published: EDP Sciences 2021
• Subjects: Stars: activity; Planetary systems; Techniques: radial velocities; Stars: late-type; Tigre; narval
• Online Access: http://hdl.handle.net/10261/250987; https://doi.org/10.1051/0004-6361/202140889; https://doi.org/10.13039/501100003329

Context. Radial-velocity (RV) jitter caused by stellar magnetic activity is an important factor in state-of-the-art exoplanet discovery surveys such as CARMENES. Stellar rotation, along with heterogeneities in the photosphere and chromosphere caused by activity, can result in false-positive planet d...