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Exploring flaring behaviour on low mass stars, solar-type stars and the Sun.

Doyle, L. and Ramsay, G. and Doyle, J. G. and Wyper, P. F. and Scullion, E. and Wu, K. and McLaughlin, J. A. (2019) 'Exploring flaring behaviour on low mass stars, solar-type stars and the Sun.', Proceedings of the International Astronomical Union., 15 (S354). pp. 384-319.


We report on our project to study the activity in both the Sun and low mass stars. Utilising high cadence, Hα observations of a filament eruption made using the CRISP spectropolarimeter mounted on the Swedish Solar Telescope has allowed us to determine 3D velocity maps of the event. To gain insight into the physical mechanism which drives the event we have qualitatively compared our observation to a 3D MHD reconnection model. Solar-type and low mass stars can be highly active producing flares with energies exceeding erg. Using K2 and TESS data we find no correlation between the number of flares and the rotation phase which is surprising. Our solar flare model can be used to aid our understanding of the origin of flares in other stars. By scaling up our solar model to replicate observed stellar flare energies, we investigate the conditions needed for such high energy flares.

Item Type:Article
Full text:(SMUR) Submitted Manuscript Under Review
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Date of first online publication:24 September 2020
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