🪐 PBJcosmo: Power spectrum & Bispectrum Joint analysis

pbjcosmo is a Python package for the joint analysis of the galaxy power spectrum and bispectrum from spectroscopic galaxy clustering.

Authors: Chiara Moretti, Andrea Oddo

📄 Full documentation here

🆕 What's new?

Installation and quickstart 🚀

You can install from PyPI: run

pip install pbjcosmo[theory,likelihood]

for the full installation, or, if you want a minimal installation that only covers theoretical predictions for the power spectrum:

pip install pbjcosmo

See the Installation Guide for full instructions on how to install, and the Inference quickstart for a brief introduction on how to run chains. More detailed examples coming soon!

Citing 📚

If you use pbjcosmo in your work, please cite the following paper:

• Moretti, C. et al., JCAP12(2023)025, Modified gravity and massive neutrinos: constraints from the full shape analysis of BOSS galaxies and forecasts for Stage IV surveys

For the original implementation and modelling for the real space bispectrum:

• Oddo et al., 2020, JCAP03(2020)056, Toward a robust inference method for the galaxy bispectrum: likelihood function and model selection

For the real space power spectrum and bispectrum:

• Oddo et al., 2021, JCAP11(2021)038, Cosmological parameters from the likelihood analysis of the galaxy power spectrum and bispectrum in real space

For the redshift space bispectrum:

• Rizzo et al., 2022, JCAP01(2023)031The halo bispectrum multipoles in redshift space

The code has been validated and used to analyse both simulated and real data already in a number of papers, a full list can be found in this ADS library

Contributing & Contact 🤝

Feel free to open an issue or a fork and then a pull request. For questions, reach out to Chiara Moretti.

Contributors ✨

Thanks goes to these wonderful people (emoji key):

Chiara Moretti 💻 📖 💡 🤔 🚇 🚧 🧑‍🏫 📦 📆 📣 🔬 👀 📢	Cecilia Oliveri 💻 🤔 📣 🔬 📢 🐛	Elena Sarpa 💻 🤔 📣	Emiliano Sefusatti 🤔 📣 📢	Emilio Bellini 💻 🤔 📣 🔬 📢 🐛	Francesco Verdiani 💻 🤔 📣 🔬 📢	Federico Montano 💻 🤔 🔬
Federico Rizzo 💻 📣 🔬 🔣	Giosuè Gambardella 📣 🔬 📢	Jacopo Salvalaggio 💻 🐛	Kevin Pardede 💻 🤔 📣 🔬 📢	Maria Tsedrik 💻 🤔 🧑‍🏫 📣 🔬 📢 🐛	Mohamed Elkhashab 🤔 📣 🔬 📢	Pedro Carrilho 💻 🤔 📣 🔬 📢 🐛
Sujeong Lee 💻 🤔 📣 🔬 🐛	matildebs 💻 🤔 📣 🔬 📢 🐛	Zhaoting Chen 💻 📖 🔬	Asser Elhegawy 🐛	nebblu 💻 📖 🔬
Add your contributions

This project follows the all-contributors specification. Contributions of any kind welcome!