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White-light continuum emission from a solar flare and plage

Published online by Cambridge University Press:  09 September 2016

Arkadiusz Berlicki ,
Arun Kumar Awasthi ,
Petr Heinzel  and
Michal Sobotka
Arkadiusz Berlicki
Affiliation:
Astronomical Institute, University of Wrocław, Poland email: [email protected] email: [email protected] Astronomical Institute, Czech Academy of Sciences, Czech Republic email: [email protected]
Arun Kumar Awasthi
Affiliation:
Astronomical Institute, University of Wrocław, Poland email: [email protected] email: [email protected]
Petr Heinzel
Affiliation:
Astronomical Institute, Czech Academy of Sciences, Czech Republic email: [email protected]
Michal Sobotka
Affiliation:
Astronomical Institute, Czech Academy of Sciences, Czech Republic email: [email protected]
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Abstract

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Observations of flare emissions in the optical continuum are very rare. Therefore, the analysis of such observations is useful and may contribute to our understanding of the flaring chromosphere and photosphere. We study the white light continuum emission observed during the X6.9 flare. This emission comes not only from the flare ribbons but also form the nearby plage area. The main aim of this work is to disentangle the flare and plage (facula) emission. We analyzed the spatial, spectral and temporal evolution of the flare and plage properties by analyzing multi-wavelength observations. We study the morphological correlation of the white-light continuum emission observed with different instruments. We found that some active region areas which produce the continuum emission correspond rather to plages than to the flare kernels. We showed that in some cases the continuum emission from the WL flare kernels is very similar to the continuum emission of faculae.

Keywords

Sun: flaresSun: chromospheremethods: data analysis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 11 , Symposium S320: Solar and Stellar Flares and their Effects on Planets , August 2015 , pp. 268 - 277
Copyright
Copyright © International Astronomical Union 2016 

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