Computer Science – Numerical Analysis
Scientific paper
Sep 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...379....1b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 379, Sept. 20, 1991, p. 1-5. Research supported by Ministero dell'Universit
Computer Science
Numerical Analysis
32
Background Radiation, Microwave Spectra, Relic Radiation, Universe, Analytic Functions, Compton Effect, Cosmology, Energy Dissipation, Numerical Analysis
Scientific paper
An extensive numerical analysis is made of distortions of the microwave background spectrum that can arise over a broad interval of cosmic times. The range of validity of existing analytic approximation formulas holding for large and very small values of the Comptonization parameter is assessed, and the shape of distortions that can arise for intermediate values of the parameter is determined. From a comparison with existing spectral data, the upper limits of the amount of energy that could have been dissipated at each cosmic time are derived. The effectiveness of future measurements in tightening such constraints is discussed.
Burigana Carlo
Danese Lugi
de Zotti Gainfranco
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