AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 58. The Sunyaev-Zel'dovich Effect: Latest Results and Future Prospects
Topical, Oral, Tuesday, June 1, 1999, 2:30-4:00pm, 4:15-6:00pm, Continental Ballroom B

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

A. Stebbins (Fermilab)

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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