Determination of the decameter wavelength spectrum of the quiet Sun

✍ Scribed by W. C. Erickson; T. E. Gergely; M. R. Kundu; M. J. Mahoney

• Publisher: Springer
• Year: 1977
• Tongue: English
• Weight: 402 KB
• Volume: 54
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00146425

✦ Synopsis

The Teepee Tee array of the Clark Lake Radio Observatory has been used to compare the flux of the Sun with that of the sidereal sources Tau A and Vir A at several frequencies in the range 109.0-19.0 MHz. Only the two central banks of the E-W arm of the array were used as elements of a phase switched interferometer so that the Sun could be observed as a point source and compared directly to the sidereal sources. The Sun was still partially resolved however, and appropriate corrections for this effect were made. The observations were taken at times when the Sun and either Tau A or Vir A were at the same declination. We have therefore been able to derive the values for the solar flux, without having to resort to a gain vs zenith distance correction. The observations, combined with those available in the literature, allow us to derive an accurate meter and decameter wavelength spectrum of the quiet Sun. * On leave of absence from Instituto Argentino de Radioastronomia, Argentina.