This page provides data products associated with the SPTpol measurement of the CMB EE and TE polarization power spectra over 500 square degrees described in Chou et al., 2025. The power spectra are presented over the multipole range 50 < ell <= 8000 and can be used to constrain cosmological models using the likelihood package provided below.

If you have any questions regarding this data set or its use, please contact Jody T-L Chou (tlchou_at_uchicago_dot_edu).

Below are links to FITS files containing 95 GHz and 150 GHz maps of the SPTpol 500d field from the full 2013-2016 season observations. Auxiliary files, instrument beams, and spectral bandpass functions are necessary for interpreting the maps. These files are included further below.

Temperature and linear-Stokes-parameter (Q/U) maps of the SPTpol 500d field in the 95 GHz and 150 GHz bands, presented in the oblique Lambert equal-area azimuthal projection. Two sets of T/Q/U maps are available for each band, corresponding to the "low-multipole" and "high-multiopole" parts of the analysis in Chou et al. (2025). The low-multipole, or low-resolution, maps are at 3-arcminute resolution and have been minimally high-pass filtered, while the high-multipole or high-resolution maps are at 0.5-arcminute resolution and have been high-pass filtered at roughly l = 300. For details see Chou et al. (2025).

Low-resolution 90 GHz map
Low-resolution 150 GHz map
High-resolution 90 GHz map
High-resolution 150 GHz map

Below are links to FITS files containing auxiliary information needed to interpret the of the SPTpol 500d field. Included are pixel weight maps, apodization+point-source masks applied in power spectrum estimation, 1d multipole-space instrument beams (point-spread functions), 1d multipole-space filter transfer functions, and instrument bandpasses (response as a function of frequency of incoming radiation).

Pixel weight maps for the T/Q/U maps presented above (six weight maps per file, representing the TT, TQ, TU, QQ, QU, and UU weights per pixel):
Low-resolution 90 GHz weights
Low-resolution 150 GHz weights
High-resolution 90 GHz weights
High-resolution 150 GHz weights

Masks (one for low-resolution maps, one for high-resolution maps) applied during power spectrum estimation. Masks are the same size as the maps and include apodization at the map edges and holes at the locations of bright point sources (see paper for details).
Low-resolution mask
High-resolution mask

One-dimensional filter transfer functions appropriate for debiasing angular power spectra of the above maps:
Low-resolution 90 GHz transfer function
Low-resolution 150 GHz transfer function
High-resolution 90 GHz transfer function
High-resolution 150 GHz transfer function

One-dimensional multipole-space beam functions appropriate for debiasing angular power spectra of the above maps:
90 GHz multipole-space beam function
150 GHz multipole-space beam function

Bandpass Functions:
Average SPT spectral bandpass function for the 90 GHz observing band.
Average SPT spectral bandpass function for the 150 GHz observing band.

We provide files in a compressed zip file here that can be plugged into the Cobaya framework. Prerequisites for this code are an installation of Cobaya, plus CAMB and/or the CosmoPower emulators here.

If you have any questions regarding the use of this likelihood, please contact Jody T-L Chou (tlchou_at_uchicago_dot_edu).

v1.0: July 24, 2025 - Initial version released with accepted paper.