Long-term correlation between latitude-dependent solar activity and solar wind streams

Abstract

view Abstract Citations (2) References (25) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Long-term correlation between latitude-dependent solar activity and solar wind streams. Cuperman, S. ; Dryer, M. Abstract The long-term correlation between the latitude-dependent 5303-A coronal line intensity and the solar-wind plasma streams measured at 1 AU heliocentric distance during the period 1962-1970 is investigated. For this purpose, half-year averages of the daily green-line intensities obtained at the Kislovodsk Station (with 5-deg latitude resolution) and recently summarized solar-wind data are used. It is found that (1) the intensity of the light radiation is anticorrelated with the high-speed solar-wind streams and (2) the magnitude of the anticorrelation coefficient increases with heliographic latitude to a value of approximately 0.6 at about 30 deg, after which it changes only a little. The possible identification of coronal regions of very low green-line emission with coronal holes and the resulting relationship between the latitude-dependent holes and high-speed solar-wind flows are also discussed. Publication: The Astrophysical Journal Pub Date: July 1978 DOI: 10.1086/156295 Bibcode: 1978ApJ...223..601C Keywords: Solar Activity; Solar Corona; Solar Wind Velocity; Statistical Correlation; Interplanetary Magnetic Fields; Line Spectra; Stellar Luminosity; Solar Physics; Solar Coronal Holes:Solar Wind; Solar Wind: Streams full text sources ADS |