The velocity and the density spectrum of the solar wind from simultaneous three-frequency IPS observations

摘要: Density inhomogeneities in the solar wind cause fluctuations regarding emission of small diameter radio sources. Such are called interplanetary scintillation (IPS). IPS has been studied to obtain information on both and In present investigation it is attempted extract about from simultaneous observations at three frequencies a single antenna. Data were recorded 270 MHz, 340 470 MHz 91 m telescope. Five different sources observed. The compared with theoretical predictions for spectra, cross-spectra, cross-correlations using weak scattering theory various models wavenumber spectrum density wind. Good fits obtained over observed wavenumbers modeled as power law.