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cosmomc: cmb_dataset_SZ parameters
Posted: May 05 2009
by Adam Mantz
Does anyone know what cmb_dataset_SZ_scale should be set to for QuAD data (using the WMAP template)? i.e.
cmb_dataset = data/QuAD.newdat
cmb_dataset_SZ = data/WMAP_SZ_VBand.dat
cmb_dataset_SZ_scale = ???
Re: cosmomc: cmb_dataset_SZ parameters
Posted: May 05 2009
by Antony Lewis
The scale is used to scale the SZ template power spectrum (cmb_dataset_SZ) to the frequency actually being used in this dataset.
cosmomc: cmb_dataset_SZ parameters
Posted: May 28 2009
by Adam Mantz
In case anyone else out there is wondering, Clem Pryke had this to say:
"The QUaD results we released are a combination of 100 GHz , 150 GHz and
frequency cross spectra. So the value you seek is basically undefined. However
if you use 150GHz you will not be too far wrong since this gets the largest
weight. And for ell<2000 the SZ contribution is not strong anyway."
Using the WMAP_SZ_VBand.dat template, the scale would then be ~0.28.