The Rossiter-McLaughlin effect (Ohta et al. 2005)

The Rossiter McLaughlin (RMcL) effect is an apparent RV shift of the stellar spectrum during planetary transits. As the planet moves across the stellar disk, it eclipses different surface sections with different radial velocities caused by stellar rotation. Here, we provide an implementation of the analytical radial-velocity model presented by Ohta et al. 2005 1.

Contents:

• Rossiter-McLaughlin model class
  • RmcL (circular orbit)
    • RmcL
      • RmcL.evaluate()
  • RmcLell (elliptical orbit)
    • RmcLell
      • RmcLell.evaluate()
• Examples
  • Calculating models
    • Circular orbit
    • Elliptical orbit
  • Fitting a model

1

Ohta et al. 2005, “The Rossiter-McLaughlin Effect and Analytic Radial Velocity Curves for Transiting Extrasolar Planetary Systems”, 2005ApJ…622.1118O