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[ascl:2301.008] HiLLiPoP: High-L Likelihood Polarized for Planck

HiLLiPoP is a multifrequency CMB likelihood for Planck data. The likelihood is a spectrum-based Gaussian approximation for cross-correlation spectra from Planck 100, 143 and 217GHz split-frequency maps, with semi-analytic estimates of the Cl covariance matrix based on the data. The cross-spectra are debiased from the effects of the mask and the beam leakage using Xpol (ascl:2301.009) before being compared to the model, which includes CMB and foreground residuals. They cover the multipoles from ℓ=30 to ℓ=2500. HiLLiPoP is interfaced with the Cobaya (ascl:1910.019) MCMC sampler.

Code site:
https://github.com/planck-npipe/hillipop https://pypi.org/project/planck-2020-hillipop/
Used in:
https://ui.adsabs.harvard.edu/abs/2017A%26A...602A..41C https://ui.adsabs.harvard.edu/abs/2022JCAP...09..004C
Bibcode:
2023ascl.soft01008T

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ascl:2301.008
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