Figure 2 from Persistent Starspot Signals on M Dwarfs: Multiwavelength Doppler Observations with the Habitable-zone Planet Finder and Keck/HIRES

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

Authors: Paul Robertson, Gudmundur Stefansson, Suvrath Mahadevan, Michael Endl, William D. Cochran, Corey Beard, Chad F. Bender, Scott A. Diddams, Nicholas Duong, Eric B. Ford, Connor Fredrick, Samuel Halverson, Fred Hearty, Rae Holcomb, Lydia Juan, Shubham Kanodia, Jack Lubin, Andrew J. Metcalf, Andrew Monson, Joe P. Ninan, Jonathan Palafoutas, Lawrence W. Ramsey, Arpita Roy, Christian Schwab, Ryan C. Terrien, and Jason T. Wright

2020 The Astrophysical Journal 897 125.

Provider: AAS Journals

Caption: Figure 2.

RVs of AD Leo, folded to the proposed planet period from Tuomi et al. (2018). Left panel shows all RVs, while the other panels show the RVs from the 2006 season (middle) and the RVs acquired in seasons other than 2006 (right). In each panel, the Tuomi et al. model is shown as a dashed line. Only the 2006 data are consistent with the Tuomi et al. model. The 2019 HPF RVs (HPFpost) in particular are incompatible in both amplitude and phase with the proposed exoplanet signal.

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