TrapezoidPlanetEstimates
- class exovetter.trapezoid_fit.TrapezoidPlanetEstimates(u1=0.4, u2=0.27, period=1.0, radius_ratio=0.0, impact_parameter=0.5, tauzero=0.1, semi_axis_ratio=20.0, surface_brightness=0.5, equiv_radius_ratio=0.0, min_depth=0.0, epoch=0.0, big_t=0.0, little_t=0.0, depth=0.0)[source]
Bases:
objectClass to handle estimating a planet’s model based upon the trapezoid fit solution. See Carter et al. 2008.
- Parameters:
- u1, u2float
Quadratic limb darkening parameters. The defaults are the limb darkening for Sun in the Kepler passband.
- periodfloat
Resulting period in days. Currently not fit.
- radius_ratiofloat
Radius ratio from purely geometric depth, defined as
(Rp/Rstar)^2.- impact_parameterfloat
Impact parameter.
- tauzerofloat
Transit timescale constant in days.
- semi_axis_ratiofloat
Semi-major axis to stellar radius ratio.
- surface_brightnessfloat
Limb darkened surface brightness at crossing impact parameter.
- equiv_radius_ratiofloat
Crude approximation to radius ratio, taking into account limb darkening that works better than the purely geometric radius ratio.
- min_depthfloat
Minimum depth from model in ppm.
- epochfloat
Epoch of fit midpoint.
- big_tfloat
Trapezoid model full duration in days.
- little_tfloat
Trapezoid model ingress/egress duration in days.
- depthfloat
Trapezoid model depth parameter in ppm.