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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 Journal 155 192.

  • Provider: AAS Journals

Caption: Figure 11.

Photometric amplitude as a function of radial velocity amplitude for a star with axial inclination i = 15°. Curves are plotted for spot radii of rspot = 5°, 10°, and 15° with spot contrasts of TphotTspot = ΔT = 400 and 500 K. The points defining each curve are for different spot latitudes ranging from 30° to 90° (at 0, 0) in steps of 5°. The observed photometric and spectroscopic amplitudes are denoted by the horizontal and vertical lines, respectively.

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