Using five year WMAP full sky observations at 23, 33, 41, 61, and 94 GHz, and the 100 micron IRIS map, we estimate the full sky CMB temperature anisotropies via a set of localised minimum variance linear combinations on a frame of spherical needlets. We obtain two full sky, low foreground contamination maps of the CMB, one at the resolution of the WMAP W channel, and a Wiener-filtered version at lower effective resolution, but with minimum integrated error.
The preprint describing the method, and the corresponding data products can be downloaded here.
wmap-ILC-needlet.pdf
Download | Description | Size | Format | Image |
map_cmb_ilc.fits | Needlet ILC CMB map at WMAP W channel resolution | 12 MB | FITS | ![]() |
map_cmb_wiener.fits | Wiener filtered version of the CMB map | 12 MB | FITS | ![]() |
beam_bl.txt | Beams (total response in harmonic space) | 46 kB | ASCII | ![]() |
noise_nl.txt | Noise power spectrum | 30 kB | ASCII | ![]() |
noise_stddev.fits | Noise standard deviation map | 12 MB | FITS | ![]() |
alm_noise_100MC.tar.gz | 100 Monte-Carlo noise simulations | 695 MB | TAR.GZ | N/A |
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