==== ellc

Generate light curves or radial velocity curves for a binary star system with the ellc light curve model. [1]_

Installation of this module requires python 3.x and numpy. The anaconda distribution of python3 is recommended.

To install this module on linux-like systems run the following command $ pip install ellc or to install on your system if you have root access $ sudo pip install ellc

Mac OSX - you may need to add a symbolic link so that pip can find the correct version of gfortran, e.g., for macports users ... $ ln -s /opt/local/bin/gfortran-mp-6 /opt/local/bin/gfortran

If you are having trouble installing and have using anaconda3 / miniconda3 and are compiing with clang, try .. bash $ export CONDA_BUILD_SYSROOT=$(xcrun --show-sdk-path) tcsh $ setenv CONDA_BUILD_SYSROOT xcrun --show-sdk-path

Routines in this module:

lc(t_obs, radius_1, radius_2, sbratio, incl, ... )

rv(t_obs, radius_1, radius_2, sbratio, incl, t_zero, period, a, q, ...)

fluxes(t_obs, radius_1, radius_2, sbratio, incl, ... )

ldy.LimbGravityDarkeningCoeffs()

Documentation and examples for each routine are included in the file headers and can be viewed from within python in the normal way, e.g.,

import ellc print(ellc.ldy.doc)

The easiest way to fit a single light curve is use ellc_emcee (you will need to add the appropriate /bin/ directory to your path). Run the command ellc_emcee and follow the prompts. You can grab the output from this script in the log file and use this as the basis of a new input file for this script. Use ./ellc_emcee.py -h to see command-line options.

Please cite Maxted (2016) if you published results based on this software. See sub-directory examples/ for scripts used to generate the figures in this paper.

.. rubric:: References .. [1] Maxted, P.F.L. 2016. A fast, flexible light curve model for detached eclipsing binary stars and transiting exoplanets. A&A 591, A111