Fitting formula for flux scintillation of compact radio sources

J. Goodman, R. Narayan

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


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 intraday 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.

Original languageEnglish (US)
Pages (from-to)510-527
Number of pages18
JournalAstrophysical Journal
Issue number1 I
StatePublished - Jan 1 2006

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science


  • Methods: data analysis
  • Radio continuum: general
  • Scattering


Dive into the research topics of 'Fitting formula for flux scintillation of compact radio sources'. Together they form a unique fingerprint.

Cite this