About popstock
popstock: a python–based open–source package for the rapid computation of gravitational-wave background (GWB) fractional energy density spectra such as :math: Omega_{rm GW}, for a given realization of events, and its ensemble average :math: bar{Omega}_{rm GW} for a given set of hyper-parameters :math: Lambda.
Other than the standard python scientific libraries numpy and scipy, the main dependencies of the popstock package are:
astropy: a core python library used by astronomersbilby: one of the most popular bayesian inference libraries for GW astronmygwpopulation: a collection of parametric binary black hole mass, redshift, and spin population models.
The popstock package also relies on multiprocessing (included in most python distributions) to parallelize the computations for the large number of samples required for high-precision GWB evaluation.
The gravitational-wave waveforms required to compute :math: Omega_{rm GW} are imported by bilby from the LIGO Scientific Collaboration Algorithm Library (LAL), which is also required during package installation.