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Planck polarisation map at 30 GHz

Planck polarisation map at 30 GHz

Date: 09 July 2015
Satellite: Planck
Copyright: ESA and the Planck Collaboration

This image uses data from the Second Planck Catalogue of Compact Sources to map polarised compact sources across the sky. The catalogue includes data from the full Planck mission, surveying the entire sky in nine different wavelengths spanning the far-infrared to radio, covering the spectral range 30 GHz to 857 GHz. Of these nine frequencies, Planck has polarisation sensitive instruments in seven, and this image shows maps sources found using the 30 GHz frequency channel. The full catalogue offers polarisation data for several hundred compact sources.

The most prominent polarised compact sources have been labelled and can clearly be seen in this image. One such object, to the right of centre in the image, is Centaurus A. A diagram comparing this object at different Planck frequencies is also available.

Last Update: 1 September 2019
14-Jul-2024 05:00 UT

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