This repository contains the Montepython likelihoods needed to perform full-shape analysis of current and future survey data. The likelihood can be used to analyze any of the following datasets:
- Galaxy power spectrum multipoles (P0 / P2 / P4, see Ivanov+19)
- Galaxy real-space power spectrum proxy (Q0, see Ivanov+21)
- Galaxy BAO rescaling parameters (AP, see Philcox+20)
- Galaxy bispectrum monopole, including PNG and (still in development) one-loop galaxy bias (B0, see Philcox & Ivanov 21, Cabass+22, Philcox+22)
The likelihoods make extensive use of the CLASS-PT code (Chudaykin+20), which is an extension of the Boltzmann code CLASS. The one-loop bispectrum extension (which should be run at fixed cosmology, except for sigma8) additionally requires the bispectrum templates computed with the OneLoopBispectrum Mathematica code.
In the data/ directory, we include measurements of each of the above data-sets for the BOSS survey. Note that power spectra and bispectra do not include the survey window function; these are computed with the estimators of Philcox 20, and Philcox 21, as in the Spectra-Without-Windows repository. We provide a sample .param file in the input/ directory; this will reproduce the full BOSS analysis of Philcox & Ivanov 21.
- Oliver Philcox (Columbia / Simons Foundation)
- Mikhail Ivanov (IAS)
- Giovanni Cabass (IAS)
Newly added features: redshift-dependent scale cuts*