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Title: Latitude character and evolution of Gnevyshev gap
Authors: Pandey, K. K
Hiremath, K. M
Yellaiah, G
Keywords: Sun: higher latitude activity;Sun: lower latitude activity
Issue Date: Jun-2017
Publisher: Springer
Citation: Astrophysics and Space Science, Vol. 362, 106
Abstract: The time interval, between two highest peaks of the sunspot maximum, during which activity energy substantially absorbed is called Gnevyshev gap. In this study we focus on mysterious evolution of the Gnevyshev gap by analyzing and comparing the integrated (over the whole Sun) characteristics of magnetic field strength of sunspot groups, soft x-ray flares, filaments or prominences and polar faculae. The time latitude distribution of these solar activities from photosphere to coronal height, for the low (≤50∘) and high (≥50∘) latitudes, shows the way Gnevyshev gap is evolved. The presence of double peak structure is noticed in high latitude (≥50∘) activity. During activity maximum the depression (or valley) appearing, in different activity processes, probably due to shifting, spreading, and transfer of energy from higher to lower latitudes with the progress of solar cycle. The morphology of successive lower latitude zones, considering it as a wave pulse, appears to be modified/scattered, by certain degree due to shifting of magnetic energy to empower higher or lower latitudes.
Description: Restricted Access
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ISSN: 0004-640X
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Appears in Collections:IIAP Publications

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