C_ell from lensing and clustering.

Use of Healpix, camb, CLASS, cosmomc, compilers, etc.
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Cristhian GQ
Posts: 10
Joined: March 27 2019
Affiliation: University of Texas at Dallas

C_ell from lensing and clustering.

Post by Cristhian GQ » April 16 2019

Hello, I would like to know if CAMB or CosmoMC can output the 3\times2 Cl’s directly when a photo-z profile is given.

Thank you,
Cristhian Garcia.

Antony Lewis
Posts: 1659
Joined: September 23 2004
Affiliation: University of Sussex

Re: C_ell from lensing and clustering.

Post by Antony Lewis » April 16 2019

CAMB can calculate angular power spectra and cross-spectra for lensing and counts given window functions (but currently without intrinsic alignments). CosmoMC's wl.f90 implements an independent pure Limber analysis (but including intrinsic alignments) following the DES papers; see the DES likelihood for an example (this is also implemented in python, and in Cobaya).

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