AD Leonis: Radial Velocity Signal of Stellar Rotation or Spin–Orbit Resonance?
Authors: Mikko Tuomi, Hugh R. A. Jones, John R. Barnes, Guillem Anglada-Escudé, R. Paul Butler, Marcin Kiraga, and Steven S. Vogt
2018 The Astronomical Journal155192.
Provider: AAS Journals
Caption: Figure 5.
Logarithm of the likelihood ratio periodogram of the HIRES S-index (top left panel), HARPS S-index (top right panel), BIS (bottom left panel), and FWHM (bottom right panel).