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Title: 1–8 Å Coronal Background X-Ray Emission and the Associated Indicators of Photospheric Magnetic Activity
Authors: Ramesh, K. B
Rohini, V. S
Keywords: Sun;corona—Sun;X-rays;gamma rays—sunspots
Issue Date: 10-Oct-2008
Publisher: The American Astronomical Society
Citation: The Astrophysical Journal Letters, Vol. 686, pp. L41 – L44
Abstract: Consistent correlations between X-ray background flux (XBF) and sunspot area over three solar cycles suggest a strong relationship between the flux emergence at the locations of strong field regions, sunspots, and the coronal heating processes that ultimately result in coronal X-ray emission. We find that the pattern of variation of sunspot numbers shows noticeable deviations from the pattern depicted by the sunspot areas when compared to XBF. A weight factor, such as , assigned to individual spot groups in may provide better estimation of the true strength of solar cycles
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Appears in Collections:IIAP Publications

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