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Correlation between decay rate and amplitude of solar cycles as revealed from observations and dynamo theory

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dc.contributor.author Hazra, G
dc.contributor.author Karak, B. B
dc.contributor.author Banerjee, D
dc.contributor.author Choudhuri, A. R
dc.date.accessioned 2020-11-20T13:35:09Z
dc.date.available 2020-11-20T13:35:09Z
dc.date.issued 2015-06
dc.identifier.citation Solar Physics, Vol. 290, No. 6, pp. 1851-1870 en_US
dc.identifier.issn 1573-093X
dc.identifier.uri http://prints.iiap.res.in/handle/2248/7345
dc.description Restricted Access © Springer The original publication is available at springerlink.com http://dx.doi.org/10.1007/s11207-015-0718-8 en_US
dc.description.abstract Using different proxies of solar activity, we have studied the following features of the solar cycle: i) The linear correlation between the amplitude of cycle and its decay rate, ii) the linear correlation between the amplitude of cycle n and the decay rate of cycle (n−1), and iii) the anti-correlation between the amplitude of cycle n and the period of cycle (n−1). Features ii) and iii) are very useful because they provide precursors for future cycles. We have reproduced these features using a flux-transport dynamo model with stochastic fluctuations in the Babcock–Leighton α effect and in the meridional circulation. Only when we introduce fluctuations in meridional circulation, are we able to reproduce different observed features of the solar cycle. We discuss the possible reasons for these correlations. en_US
dc.language.iso en en_US
dc.publisher Springer en_US
dc.subject Magnetic fields, models en_US
dc.subject Solar cycle, observations en_US
dc.subject Solar cycle, models en_US
dc.title Correlation between decay rate and amplitude of solar cycles as revealed from observations and dynamo theory en_US
dc.type Article en_US


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