White-light continuum emission from a solar flare and plage

0470168 - ASÚ 2017 RIV GB eng C - Konferenční příspěvek (zahraniční konf.)
Berlicki, Arkadiusz - Awasthi, A.K. - Heinzel, Petr - Sobotka, Michal
White-light continuum emission from a solar flare and plage.
Solar and Stellar Flares and their Effects on Planets. Cambridge: Cambridge University Press, 2016, s. 268-277. Proceedings of the International Astronomical Union, IAU S320. ISBN 9781107137578.
[Symposium of the International Astronomical Union /320./. Honolulu (US), 11.08.2015-14.08.2015]
Grant CEP: GA ČR(CZ) GA16-18495S
Grant ostatní: EC(XE) 606862
Program: FP7
Institucionální podpora: RVO:67985815
Klíčová slova: Sun * flares * chromosphere
Obor OECD: Astronomy (including astrophysics,space science)

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.

Trvalý link: http://hdl.handle.net/11104/0267884