ACT (DR6.02) Pspipe Best Fits

This folder contains the best fits power spectra, in LCDM, for the ACT DR6 and P-ACT cosmology The CMB best fits are generated using CAMB v1.5.9 using the following parameters:

- ACT DR6:

cosmo_params = {"cosmomc_theta":1.040547237e-02, "logA": 3.057507171e+00, "ombh2": 2.261650205e-02, "omch2": 1.240404189e-01, "ns": 9.663813976e-01, "tau": 5.655092745e-02}

- P-ACT:

cosmo_params = {"cosmomc_theta":1.040727759e-02, "logA": 3.050789144e+00, "ombh2": 2.248927912e-02, "omch2": 1.194830705e-01, "ns": 9.700695084e-01, "tau": 5.719987087e-02}

The following accuracy_params are used:

accuracy_params = {"recombination_model":"CosmoRec", "lens_potential_accuracy": 8, "lens_margin": 2050, "AccuracyBoost": 2.0, "lSampleBoost": 2.0, "lAccuracyBoost": 2.0, "kmax": 10, "k_per_logint": 130, "nonlinear": True, "DoLateRadTruncation": False, "min_l_logl_sampling": 6000}

The foreground best fits are generated using fgspectra v1.1.0 using the following parameters:

- ACT DR6:

fg_params = {"a_tSZ": 3.352350745e+00, "alpha_tSZ":-6.501443802e-01, "a_kSZ": 2.016949764e+00, "a_p": 7.594274444e+00, "beta_p": 1.902934700e+00, "a_c": 3.684264620e+00, "beta_c": 1.902934700e+00, "a_s": 2.810617983e+00, "beta_s":-2.810871948e+00, "xi": 7.733078253e-02, "a_gtt": 7.954307627e+00, "a_gte": 4.190788929e-01, "a_gtb": 0., "a_gee": 1.686089309e-01, "a_gbb": 0.116, "a_pste": -2.597454946e-02, "a_pstb": 0, "a_psee": 1.356848002e-02, "a_psbb": 0, "alpha_s":1.0, "T_d": 9.60, "T_effd":19.6, "beta_d":1.5, "alpha_dT":-0.6, "alpha_dE":-0.4, "alpha_p":1.}

- P-ACT:

fg_params = {"a_tSZ": 3.501142770e+00, "alpha_tSZ":-4.597721879e-01, "a_kSZ": 9.866046820e-01, "a_p": 7.647742104e+00, "beta_p": 1.864907550e+00, "a_c": 3.805341822e+00, "beta_c": 1.864907550e+00, "a_s": 2.886594272e+00, "beta_s":-2.756778400e+00, "xi": 6.424293336e-02, "a_gtt": 7.974213801e+00, "a_gte": 4.184588365e-01, "a_gtb": 0., "a_gee": 1.676466062e-01, "a_gbb": 0.11, "a_pste": -2.500092711e-02, "a_pstb": 0, "a_psee": 3.755819497e-03, "a_psbb": 0, "alpha_s":1.0, "T_d": 9.60, "T_effd":19.6, "beta_d":1.5, "alpha_dT":-0.6, "alpha_dE":-0.4, "alpha_p":1.}

Script for generating the best fits The best fits are generated using the following script in PSpipe v1.0:

https://github.com/simonsobs/PSpipe/blob/master/project/ACT_DR6/python/get_best_fit_mflike.py

File structure

We provide best fits for both ACT DR6 and P-ACT cosmology.

File format

Each file contains the following columns:
l, Dl_TT, Dl_TE, Dl_TB, Dl_ET, Dl_BT, Dl_EE, Dl_EB, Dl_BE, Dl_BB

Note

By definition, the best fit curves do not include uncertainties on the measurement. They should be used cautiously.

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