The PyA model suite

The PyAstronomy model suite is a set of implementations of physical models like, for example, a transit light-curve model. The models are supposed to provide an interface to the funcFit package so that they can be used for fitting.

Note

We provide examples for the individual classes. For a more detailed introduction to the capabilities of the funcFit package, we refer to funcFit’s tutorial.

Contents:

• Common fitting models
  • Single Gaussian with linear continuum
  • Multicomponent Gaussian with linear continuum
  • Cauchy-Lorentz with linear continuum
  • Voigt with linear continuum
  • Multicomponent Voigt profile with linear continuum
  • Sine fit
  • Exponential decay
  • Polynomial of degree n
  • Hyperbolic secant
  • Constant
  • Two-dimensional Gaussian
  • Multicomponent two-dimensional Gaussian
• Demonstration models
  • Simple circular orbit
• Transit modeling
  • Transit light-curves
  • Rossiter McLaughlin curves
• Circular orbit—radial-velocity shift
  • SinRadVel
  • Example code - Fit RV curve
• The Kepler ellipse models
  • KeplerEllipseModel: Location or velocity
  • Radial velocity curves: KeplerRVModel
• Line list based Gaussian spectral model
  • LLGauss
  • Example: Evaluation and fitting
• Voigt profile with astronomical parameterization
  • VoigtAstroP
  • Example
  • Example: Adding instrumental resolution
• Hydrogen Lyman-alpha line-profile
  • LyaTransmission
  • Example
• Rotational broadening profile
  • RotBroadProfile
  • Example of usage