Two-halo term

It is possible to use profiley to calculate the contribution from large-scale structure, usually known as the “two-halo term”. Doing this requires calculation of the matter power spectrum, which is not implemented in profiley, but given a power spectrum profiley provides convenience functions to calculate the surface density.

There are several steps involved in this calculation; for a full working example see this notebook, where we use the Core Cosmology Library to obtain the matter power spectrum.