GUIBRUSHR.General_Constants.FunctionsAndConstants.radvel_g module

Credit to radvel software RadVel: The Radial Velocity Modeling Toolkit 10.1088/1538-3873/aaaaa8

GUIBRUSHR.General_Constants.FunctionsAndConstants.radvel_g.rv_drive(t, orbel)[source]

RV Drive :param t: times of observations :type t: array of floats :param orbel: [per, tp, e, om, K]. Omega is expected to be in radians :type orbel: array of floats

Returns:

(array of floats): radial velocity model

Return type:

rv

GUIBRUSHR.General_Constants.FunctionsAndConstants.radvel_g.true_anomaly(t, tp, per, e)[source]

Calculate the true anomaly for a given time, period, eccentricity.

Parameters:

  • t (array) – array of times in JD

  • tp (float) – time of periastron, same units as t

  • per (float) – orbital period in days

  • e (float) – eccentricity

Returns:

true anomoly at each time

Return type:

array

GUIBRUSHR.General_Constants.FunctionsAndConstants.radvel_g.kepler(Marr, eccarr)[source]

Solve Kepler’s Equation :param Marr: input Mean anomaly :type Marr: array :param eccarr: eccentricity :type eccarr: array

Returns:

eccentric anomaly

Return type:

array

GUIBRUSHR.General_Constants.FunctionsAndConstants.radvel_g.timetrans_to_timeperi(tc, per, ecc, omega)[source]

Convert Time of Transit to Time of Periastron Passage

Parameters:

  • tc (float) – time of transit

  • per (float) – period [days]

  • ecc (float) – eccentricity

  • omega (float) – longitude of periastron (radians)

Returns:

time of periastron passage

Return type:

float