How can we measure the extragalactic infrared background

Details How can we measure the extragalactic infrared background How can we measure the extragalactic infrared background

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979a%26a....78..376f&link_type=abstract

Astronomy and Astrophysics, vol. 78, no. 3, Oct. 1979, p. 376-378.

Astronomy and Astrophysics

Astronomy

7

Background Radiation, Galactic Clusters, Galactic Radiation, Infrared Astronomy, Infrared Radiation, Radiation Measurement, Anisotropy, Beam Switching, Compton Effect, Infrared Telescopes, Photoconductors

Scientific paper

A technique intended to measure the extragalactic background in the infrared region, which automatically cancels the galactic and zodiacal background is proposed. This method measures the spectral properties of the anisotropy of the extragalactic background, arising from the inverse Compton scattering of the background photons on a very hot gas in a cluster of galaxies. This anisotropy is known as the Sunyaev-Zeldovich effect in the case of 3K cosmic background. The proposed technique combines the advantages of the differential (double-beam or beam-switching) techniques with the special advantage of dealing with a signal of peculiar spectral shape.

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