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B\\'ejar, W. Seifert","submitted_at":"2018-03-06T18:54:41Z","abstract_excerpt":"Previous simulations predicted the activity-induced radial-velocity (RV) variations of M dwarfs to range from $\\sim1$ cm/s to $\\sim1$ km/s, depending on various stellar and activity parameters. We investigate the observed relations between RVs, stellar activity, and stellar parameters of M dwarfs by analyzing CARMENES high-resolution visual-channel spectra ($0.5$$-$$1$$\\mu$m), which were taken within the CARMENES RV planet survey during its first $20$ months of operation. During this time, $287$ of the CARMENES-sample stars were observed at least five times. 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