lollipop

Likelihood of the Planck low-ell data polarizaton data from the PR4 analysis, using the Lollipop likelihood code.

File

likelihood/cmb/planck/lollipop/lollipop_interface.py

URL

https://github.com/planck-npipe/lollipop/

Citations

https://arxiv.org/abs/2112.07961

Lollipop is a Planck low-l polarization likelihood based on cross-power-spectra for which the bias is zero when the noise is uncorrelated between maps. It uses the approximation presented in Hamimeche & Lewis (2008), modified as described in Mangilli et al. (2015) to apply to cross-power spectra. This version is based on the Planck PR4 data. Cross-spectra are computed on the CMB maps from Commander component separation applied on each detset-split Planck frequency maps.

Assumptions

  • Foreground model as specified at URL

Setup Parameters

Name

Type

Default

Description

mode

str

TTTEEE

Choice of data mode, TT, TE, EE, or TTTEEE

Input values

Section

Name

Type

Default

Description

cmb_cl

ee

real 1d

E polarization power spectrum C_ell^EE

bb

real 1d

B polarization power spectrum C_ell^BB

planck

A_planck

real

Overall Planck calibration

Output values

Output values

Section

Name

Type

Description

likelihoods

lollipop_like

real

Lollipop likelihood