THE EFFECT OF SOLAR PARAMETERS ON SEASONAL-VARIATION OF 5893-ANGSTROMLINE INTENSITY AT CALCUTTA

Citation
Sk. Midya et al., THE EFFECT OF SOLAR PARAMETERS ON SEASONAL-VARIATION OF 5893-ANGSTROMLINE INTENSITY AT CALCUTTA, Earth, moon, and planets, 75(3), 1997, pp. 177-183
Citations number
13
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Astronomy & Astrophysics","Geosciences, Interdisciplinary
Journal title
ISSN journal
0167-9295
Volume
75
Issue
3
Year of publication
1997
Pages
177 - 183
Database
ISI
SICI code
0167-9295(1997)75:3<177:TEOSPO>2.0.ZU;2-Q
Abstract
The purpose of this paper is to present the correlation of seasonal va riation of 5893 Angstrom line intensity with relative sunspot numbers, solar flare numbers and the variable component of 10.7 cm solar flux. A study has been made and the following important results have been o btained. (i) The intensity of 5893 Angstrom line at Calcutta shows per iodic variation with different solar parameters during descending part of secondary peak of 21st solar cycle (1984-1985). (ii) 5893 Angstrom line intensity of Mt. Abu also shows periodic variation with solar pa rameters during the period 1965-1968 when there was a peak phase of 20 th solar cycle. (iii) A possible explanation for such type of variatio n is also presented.