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Persistent Starspot Signals on M Dwarfs: Multiwavelength Doppler Observations with the Habitable-zone Planet Finder and Keck/HIRES

12 Aug 2020, 16:00 UTC
Persistent Starspot Signals on M Dwarfs: Multiwavelength Doppler Observations with the Habitable-zone Planet Finder and Keck/HIRES
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Paul Robertson et al 2020 ApJ 897 125
New radial velocity measurements reveal that starspot modulation for rapidly rotating M stars frequently remains coherent for hundreds of stellar rotations, giving rise to signals that can be mistaken for exoplanets.

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