1–8 Å Coronal Background X-Ray Emission and the Associated Indicators of Photospheric Magnetic Activity

Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/1757

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
URI:	http://hdl.handle.net/2248/1757
Appears in Collections:	IIAP Publications

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