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Preliminary results of the analysis of CaII K spectroheliograms (1995)

Kariyappa, R. ; Balasubramaniam, K. S. ; Kuhn, Jeff R. ; [et al.]

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Publication Date: 2011-08-24

Description: The preliminary results of the photometry of CaII K spectroheliograms are presented. From the spectrograms for 1992, plages, the magnetic network, intranetwork elements and the chromospheric background were separated using the histogram method. The intensity and area of these separated features, as well as the full disk intensity, were derived. The spatial K index was compared to the spectral CaII K index derived from line profiles. It was found that the spatial K index and intensity of plages, the network elements and the intranetwork and background regions were highly correlated with the MgII h and k c/w ratio.

Keywords: SOLAR PHYSICS

Type: ESA, Proceedings of 4th SOHO on Helioseismology. Volume 2: Posters; p 429-435

Format: text

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