Dear All -
I am looking into the effects of CMB lensing, and need lensed and unlensed maps for the same value of the 'rand_seed' parameter. Currently I obtain lensed maps by providing a power spectrum to Lenspix. Can I get the unlensed map as well as the lensed map? Also, is it possible to provide an unlensed map as input to Lenspix, instead of the power spectrum?
Thanks very much.
lensed/unlensed maps from LensPix.
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Aravind Natarajan
- Posts: 1
- Joined: September 12 2012
- Affiliation: Carnegie Mellon University
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Antony Lewis
- Posts: 1952
- Joined: September 23 2004
- Affiliation: University of Sussex
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Re: lensed/unlensed maps from LensPix.
Yes, see the SimLens.f90 supplied main source file to get an idea how the underlying lenspix functions can be used (the lensing functon itself takes an unlensed a_lm and deflection angle map).