COFFE: a code for the full-sky relativistic galaxy correlation function

Understand

We present a public version of the code COFFE (COrrelation Function Full-sky Estimator) available at https://github.com/JCGoran/coffe.

• The code computes the galaxy two-point correlation function and its multipoles in linear perturbation theory, including all relativistic and wide angle corrections.
• COFFE also calculates the covariance matrix for two physically relevant estimators of the correlation function multipoles.
• We illustrate the usefulness of our code by a simple but relevant example: a forecast of the detectability of the lensing signal in the multipoles of the two-point function.