Atacama Cosmology Telescope (ACT)
Lensing Likelihood 2008-2010 Data
This is the ACT lensing likelihood routine from Das et al 2011 (astro-ph/1103.2124), written in Fortran 90.
It is a simple chisq routine that takes in a theoretical deflection spectrum, and compares it to the ACT data file in the /data directory. To use it, you should edit the Makefile for your fortran compiler;
Then: make #compiles the likelihood ./test #runs a test spectrum and returns the chisq
The likelihood is computed in ACT_lens_likelihood.f90. The array 'clpp' should be l2C_ldd/4 (equivalent to Ckk), as shown in Figure 2 of Das et al 2011 and Figure 1 of Sherwin et al 2011 (astro-ph/1105.0419).
The data files are: data/cl_kk_act_v2.dat (2nd column binned Ckk, 3rd column error) data/bin_kk_act_v2.dat (1st column ell-minimum of bin, 2nd column ell-maximum)
Code written by
J. Dunkley, S. Das, B. Sherwin, R. Hlozek, with format based on the WMAP likelihood code.