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Scattering of the Microwave Background in Clusters of Galaxies

Published online by Cambridge University Press:  14 August 2015

George Lake
George Lake*
Affiliation:
Astronomy Department, University of California Berkeley, California 94720

Extract

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Evidence from X-ray observations of clusters of galaxies suggests that they contain intergalactic plasma at a temperature of approximately 108 K which emits thermal bremsstrahlung (cf. Lea et al. 1973). Although numerous models for the origin and distribution of the plasma have been presented (cf. Gould and Raphaeli 1978), the amount and distribution of the plasma is still not certain. Several years ago, Sunyaev and Zel-dovich (1972) pointed out another observable consequence of hot gas in clusters of galaxies: inverse Compton scattering by electrons in the plasma would increase the energy of photons of the microwave background as these photons pass through the cluster. The fractional change in intensity of the microwave background is:

Type
Research Article
Information
Symposium - International Astronomical Union , Volume 92: Objects of High Redshift , 1980 , pp. 305 - 312
Copyright
Copyright © Reidel 1980 

References

Abell, G. O. 1958, Ap. J. Suppl., 3, 211.Google Scholar
Bahcall, J. N., and Sarazin, C. L. 1977, Ap. J. Letters, 213, L99.Google Scholar
Birkinshaw, M. 1979, M. N. R. A. S., in press.Google Scholar
Birkinshaw, M., Gull, S. F., and Northover, K. J. E. 1978a, M. N. R. A. S., 185, 245.Google Scholar
Birkinshaw, M., Gull, S. F., and Northover, K. J. E. 1978b, Nature, 275, 40.Google Scholar
Boynton, P. E., and Murray, S. S. 1978, privately communicated HEAO-B proposal.Google Scholar
Cavalieri, A., Danese, L., and DeZotti, G. 1978, preprint.Google Scholar
Gould, R. J., and Rephaeli, Y. 1978, Ap. J., 279, 12.Google Scholar
Gull, S. F., and Northover, K. J. E. 1975, M. N. R. A. S., 173, 585.Google Scholar
Gull, S. F., and Northover, K. J. E. 1976, Nature, 263, 572.Google Scholar
Gunn, J. E. 1978, in Observational Cosmology , eds. Maeder, L. and Tammann, G., Geneva Observatory.Google Scholar
Lake, G. and Partridge, R. B. 1977, Nature, 270, 502.Google Scholar
Lake, G. and Partridge, R. B. 1979, Ap. J., submitted.Google Scholar
Lea, S., Silk, J., Kellogg, E., and Murray, S. 1973, Ap. J. Letters, 184, L105.Google Scholar
Pariiskii, Yu. N. 1973, Sov. A. J., 16, 1048.Google Scholar
Perrenod, S. C. and Lada, C. J. 1979, preprint.Google Scholar
Pravdo, S. H., Boldt, E. A., Marshall, F. E., McKee, J., Mushotzky, R. F., Smith, B. W., and Reichert, C., Ap. J., in press.Google Scholar
Rudnick, L. 1978, Ap. J., 233, 37.Google Scholar
Sarazin, C. L., and Bahcall, J. N. 1977, Ap. J. Suppl., 34, 451.Google Scholar
Silk, J., and White, S. D. M. 1978, Ap. J. Letters, 226, L103.Google Scholar
Sunyaev, R. A., and Zel'dovich, Ya. B. 1972, Comments Ap. and Space Physics, 4, 173.Google Scholar
Tarter, J. C. 1978, Ap. J., 220, 749.Google Scholar