A dataset provided by the European Space Agency

DOI https://doi.org/10.5270/esa-siyydh3
Name LFI & HFI PR3 Legacy Frequency Sky Maps
Mission Planck
URL LFI_SkyMap_030-BPassCorrected_1024_R3.00_full.fits
Description Sky maps give the best estimate of the intensity and polarization (Stokes Q and U components), if available, of the signal from the sky after removal of known systematic effects (mostly instrumental, but including also the solar and Earth-motion dipoles, Galactic stray light, and the zodiacal light). The Planck Collaboration has made three releases of maps, in 2013, 2015 and 2018. These DOIs correspond to the 2018 release. Full mission full channel maps are built using all the valid detectors of a frequency channel and cover either the full or the nominal mission. For HFI, the 143-8 and 545-3 bolometers are rejected entirely, since they are seriously affected by RTS noise. HFI provides the Q and U components for the 100, 143, 217 and 353 GHz channels only. LFI provides the I, Q, and U maps for all the channels. Note that the HFI and LFI Q and U maps are corrected for bandpass leakage, version without correction for LFI are also available in the PLA. The I, Q, and U maps are displayed in the figures below. The colour range here is set using a histogram equalization scheme (from HEALPix) that is useful for these non-Gaussian data fields. For visualization purposes, the Q and U maps shown here have been smoothed with a 1° Gaussian kernel, otherwise they look like noise to the naked eye. The 70 GHz full map is also available at Nside=2048. The Planck PR3 Full Mission Frequency maps can be downloaded from the Planck Legacy Archive. Further details about the Planck frequency maps can be found in the bibliography and in the Planck Legacy Explanaatory Supplement: https://wiki.cosmos.esa.int/planck-legacy-archive/index.php/Frequency_maps
Instrument LFI and HFI
Temporal Coverage 2009-08-12/2013-10-23
Version PR3
Mission Description Planck is ESA's mission to observe the first light in the Universe. Planck was selected in 1995 as the third Medium-Sized Mission (M3) of ESA's Horizon 2000 Scientific Programme, and later became part of its Cosmic Vision Programme. It was designed to image the temperature and polarization anisotropies of the Cosmic Background Radiation Field over the whole sky, with unprecedented sensitivity and angular resolution. Planck is testing theories of the early universe and the origin of cosmic structure and providing a major source of information relevant to many cosmological and astrophysical issues.
Creator Contact PLA Helpdesk
Date Published 2018-07
Publisher And Registrant European Space Agency
Citation Guidelines European Space Agency, 2018,LFI & HFI PR3 Legacy Frequency Sky Maps,Version PR3https://doi.org/10.5270/esa-siyydh3