External maps

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In the External Maps section of the Planck Legacy Archive we have included a small set of maps that users frequently use in combination of Planck data.

These is the list of external maps currently available in the PLA:


WMAP K, Ka, Q, V and W bands (23, 33, 41, 61 and 94 GHz) full resolution coadded nine year sky maps in intensity and polarization.

Source http://lambda.gsfc.nasa.gov/product/map


Improved Haslam et al. 408 MHz radio continuum all-sky map desourced and destriped.

Source http://www.jb.man.ac.uk/research/cosmos/haslam_map/


IRIS 12, 25, 60 and 100 microns full resolution infrared maps (IRIS: Improved Reprocessing of the IRAS Survey)

Source http://www.cita.utoronto.ca/~mamd/IRIS/


WISE 12 micron low-resolution (NSIDE 2048) full-sky dust map.

Source http://faun.rc.fas.harvard.edu/ameisner/wssa/index.html.

IRAM - Crab Nebula[edit]

2013 maps of the Crab nebula at 89.189 GHz (HCO+(1-0) transition) in both temperature and polarization, prodouced from observations performed at the IRAM 30m telescope from January 9th to January 12th 2009, are delivered as a tarball of 416 KB in the file

File:Crab IRAM 2010.zip

See README in the tarball for full details. These data were used in Aumont et al. 2010 [1].


  1. Measurement of the Crab nebula polarization at 90 GHz as a calibrator for CMB experiments, J. Aumont, L. Conversi, C. Thum, H. Wiesemeyer, E. Falgarone, J. F. Macías-Pérez, F. Piacentini, E. Pointecouteau, N. Ponthieu, J. L. Puget, C. Rosset, J. A. Tauber, M. Tristram, A&A, 514, A70+, (2010).

Planck Legacy Archive