The Utility of Precision Measurements of the Sunyaev-Zel'dovich Effect

Details The Utility of Precision Measurements of the Sunyaev-Zel'dovich Effect The Utility of Precision Measurements of the Sunyaev-Zel'dovich Effect

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.5814s&link_type=abstract

American Astronomical Society, 194th AAS Meeting, #58.14; Bulletin of the American Astronomical Society, Vol. 31, p.917

Astronomy and Astrophysics

Astronomy

Scientific paper

The electrons in galaxy cluster gas are nearly relativistic which slightly modifies the spectral signature of the S-Z effect they produce. These small modifications allow precise measurements of the S-Z spectrum in the mm band to probe a number of properties of the cluster gas in addition to those given by the classical S-Z effect. One may disentangle the electron temperature and column density without the need of X-ray measurements, and one is also sensitive to non-thermality and non-isotropy of the electron distribution function.

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