Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1978
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...223..601c&link_type=abstract
Astrophysical Journal, Part 1, vol. 223, July 15, 1978, p. 601-604.
Astronomy and Astrophysics
Astrophysics
1
Solar Activity, Solar Corona, Solar Wind Velocity, Statistical Correlation, Interplanetary Magnetic Fields, Line Spectra, Stellar Luminosity
Scientific paper
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.
Cuperman Sami
Dryer Murray
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