Kowalski, A.F., Mathioudakis, M., Hawley, S.L. et al. (4 more authors) (2011) White Light Flare Continuum Observations with ULTRACAM. In: Johns-Krull, C., (ed.) 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun. 16th Cambridge Workshop on Cool Stars, August 28 - September 2, 2010, Seattle, WA, USA. Astronomical Society of the Pacific , pp. 1157-1164. ISBN 978-1-58381-776-6
Abstract
We present sub-second, continuous-coverage photometry of three flares on the dM3.5e star, EQ Peg A, using custom continuum filters with WHT/ULTRACAM. These data provide a new view of flare continuum emission, with each flare exhibiting a very distinct light curve morphology. The spectral shape of flare emission for the two large-amplitude flares is compared with synthetic ULTRACAM measurements taken from the spectra during the large 'megaflare' event on a similar type flare star. The white light shape during the impulsive phase of the EQ Peg flares is consistent with the range of colors derived from the megaflare continuum, which is known to contain a Hydrogen recombination component and compact, blackbody-like components. Tentative evidence in the ULTRACAM photometry is found for an anti-correlation between the emission of these components.
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| Copyright, Publisher and Additional Information: | © 2011 Astronomical Society of the Pacific. No part of the material protected by this copyright may be reproduced or used in any form other than for personal use without written permission from the ASP. | ||||
| Keywords: | astro-ph.SR; astro-ph.SR | ||||
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| Institution: | The University of Sheffield | ||||
| Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) | ||||
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| Depositing User: | Symplectic Sheffield | ||||
| Date Deposited: | 30 May 2017 09:46 | ||||
| Last Modified: | 30 May 2017 09:46 | ||||
| Published Version: | http://www.aspbooks.org/a/volumes/article_details/... | ||||
| Status: | Published | ||||
| Publisher: | Astronomical Society of the Pacific | ||||
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