Doyle, L;
Ramsay, G;
Doyle, JG;
Wyper, PF;
Scullion, E;
Wu, K;
McLaughlin, JA;
... McLaughlin, JA; + view all
(2019)
Exploring Flaring Behaviour on Low Mass Stars, Solar-type Stars and the Sun.
Proceedings of the International Astronomical Union
, 15
(S354)
pp. 384-391.
10.1017/S1743921319009980.
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Exploring Flaring Behaviour on Low Mass Stars, Solar-type Stars and the Sun |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1017/S1743921319009980 |
| Publisher version: | https://doi.org/10.1017/S1743921319009980 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Sun: chromosphere, Sun: flares, stars: low-mass, stars: flare |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10124198 |
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