Analysis of 767 stars shows some claimed planetary RV signals are stellar activity, adds 30 new rotation periods and 95 new cycles, and reveals a continuous negative slope in Prot/Pcyc vs Rossby number that is steeper for planet-hosting stars.
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Magnetic Activity Cycles and Rotation in Planet-hosting and Non-hosting Solar-type Stars
Analysis of 767 stars shows some claimed planetary RV signals are stellar activity, adds 30 new rotation periods and 95 new cycles, and reveals a continuous negative slope in Prot/Pcyc vs Rossby number that is steeper for planet-hosting stars.