TT Power Spectrum Plot Data Sources

TT Power Spectrum is a text file containing the data points used to generate the plots.

ACT DR6

• The Atacama Cosmology Telescope: DR6 Power Spectra, Likelihoods and ΛCDM Parameters, Louis et.al., 2025, ADS

CMB only spectra, binning_50
CMB-only bandpowers, marginalized over astrophysical foregrounds. These spectra are released for plotting purposes and do not include the full covariance.

Planck

• Planck 2018 results. VI. Cosmological parameters, Planck Collaboration, astro-ph

  Unbinned measurements available from the Planck Legacy archive are plotted at l < 30,
  and binned measurements provided to LAMBDA by the Planck team are plotted at higher l.

SPT

• Cosmological Parameters from Pre-Planck CMB Measurements
  Calabrese, Erminia, et.al., 2013, PhRvD., 87j3012C
  ADS / astro-ph

  The plotted data are from the ACT 3-year CMB likelihood package on LAMBDA. They are based on the SPT measurements of
  Story et al. 2013.

SPT-3G D1

• SPT-3G D1: CMB temperature and polarization power spectra and cosmology from 2019 and 2020 observations of the SPT-3G Main field,
  Camphuis et al., 2025, ADS

  CMB only spectra

  The foreground- and nuisance-subtracted minimum-variance combination of the SPT-3G D1 multi-frequency band powers are
  provided for plotting purposes only, such as reproducing Figure 1 from Camphuis et al. (2025).