The Effect of Relative Sunspot Numbers,Solar Flare Numbers and Variable Component of 10.7 cm Solar Flux on The Seasonal Variation of 6300 Å Line Intensity at Calcutta |
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| Authors: | Midya S K Chattopadhyay R Pal C M |
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| Institution: | (1) Department of Physics, Serampore College, Serampore-712201, Hooghly, W.B., India;(2) Haripal G.D. Institution, Khamarchandi, 712405, Hooghly, W.B., India;(3) Department of Physics, R.K. Mission Vidyamandira, Belurmath, Howrah-711202, W.B., India |
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| Abstract: | The paper presents the seasonal variation of 6300 Å line intensity at Calcutta with relative sunspot number, solar flare number and variable component of 10.7 cm solar flux. A study has been made and important results have been obtained which are as follows. (i) Intensity of 6300 Å line shows periodic variation with relative sunspot number, solar flare number and variable component of 10.7 cm solar flux during the period 1984–1986 which is the secondary peak of the descending phase of 21st solar cycle. (ii) 6300 Å line intensity at Cachoeira Paulista station, taken by Sahai et al. (1988), also shows periodic variation with solar parameters during the period 1978–1980 which is the peak phase of the solar cycle. (iii) A possible explanation of such a type of variation is also presented. |
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| Keywords: | Airglow relative sunspot number solar flare number 10 7 cm solar flux |
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