This repository contains a number of C codes that are useful for exoplanet work. In particular, here you will find codes to:
- Model transit lightcurves.
- Model radial velocities.
It also contains a Pyhton directory that interfaces the C functions so that they can be called from Python (see below).
To call the module from Python, go to the Python folder in this module and do:
`python setup.py build`
This will generate a build folder. Inside the folder, another folder
will be created which starts with lib., inside of which you will find
the ajplanet.so file which is callable from Python. You can then move that
file to a folder with your code and import it directly by doing
import ajplanet, and use the functions inside the module.
The modelling of Radial Velocities is very simple. Just call the code from Python by doing:
ajplanet.pl_rv_array(times,gamma,K,omega,ecc,t0,P)
Where times is an array of times, gamma is the center-of-mass velocity,
K is the semi-amplitude, omega is the argument of periapsis (in radians),
ecc is the eccentricity of the orbit, t0 is the time of transit center and P
is the period of the orbit. This will return radial velocities at the input
times with the same units as K.