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Fitting Formula for Flux Scintillation of Compact Radio Sources

J. Goodman·R. Narayan
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Abstract

We present a fitting function to describe the statistics of flux modulations caused by interstellar scintillation. The function models a very general quantity: the cross-correlation of the flux observed from a compact radio source of finite angular size observed at two frequencies and at two positions or times. The formula will be useful for fitting data from sources such as intra-day variables and gamma-ray burst afterglows. These sources are often observed at relatively high frequencies (several gigahertz) where interstellar scattering is neither very strong nor very weak, so that asymptotic formulae are inapplicable.

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BibTeXRIS

J. Goodman, R. Narayan. 2005-09-07. Fitting Formula for Flux Scintillation of Compact Radio Sources. https://doi.org/10.1086/497903

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