TDCOSMO likelihood for Cobaya

This package provides the TDCOSMO likelihood as an external package for Cobaya. The hierarchical computation of the likelihood uses the hierArc package along with lenstronomy. An example notebook is included demonstrating how to use the package.

Requirements

• hierArc: clone from repo
• lenstronomy >= 1.1.3: install with pip or clone from repo

References

Birrer et al. (2020). TDCOSMO IV: Hierarchical time-delay cosmography – joint inference of the Hubble constant and galaxy density profiles, Astronomy & Astrophysics, 643, A165, November 2020.

@article{Birrer:2020tax,
    author = "Birrer, S. and others",
    title = "{TDCOSMO - IV. Hierarchical time-delay cosmography \textendash{} joint inference 
              of the Hubble constant and galaxy density profiles}",
    eprint = "2007.02941",
    archivePrefix = "arXiv",
    primaryClass = "astro-ph.CO",
    doi = "10.1051/0004-6361/202038861",
    journal = "Astronomy \& Astrophysics",
    volume = "643",
    pages = "A165",
    year = "2020"
}

Hogg (2024). Constraints on dark energy from TDCOSMO & SLACS lenses, Monthly Notices of the Royal Astronomical Society: Letters, 528, 1, March 2024.

@article{Hogg:2023khs,
    author = "Hogg, Natalie B.",
    title = "{Constraints on dark energy from TDCOSMO~\& SLACS lenses}",
    eprint = "2310.11977",
    archivePrefix = "arXiv",
    primaryClass = "astro-ph.CO",
    doi = "10.1093/mnrasl/slae005",
    journal = "Monthly Notices of the Royal Astronomical Society: Letters",
    volume = "528",
    number = "1",
    pages = "L95--L100",
    year = "2024"
}