Foullon, C., Verwichte, E., Nakariakov, V.M. and Fletcher, L. (2005) X-ray quasi-periodic pulsations in solar flares as magnetohydrodynamic oscillations. Astronomy and Astrophysics, 440(2), L59-L62. (doi: 10.1051/0004-6361:200500169)
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Publisher's URL: http://dx.doi.org/10.1051/0004-6361:200500169
Abstract
We report the first observation at high spatial resolution of long-period quasi-periodic pulsations (QPP) of X-ray radiation during solar flares, made possible with the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI), supported by complementary data at other wavelengths from space-based and ground-based telescopes. Evidence for the presence of a transequatorial loop possibly responsible for the detected periodicity connected with its kink mode is found. Our findings suggest that QPP can be interpreted as a periodic pumping of electrons in a compact flaring loop, modulated by oscillations in a magnetically linked and larger loop acting as a long-period magnetohydrodynamic resonator.
Item Type: | Articles |
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Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Fletcher, Professor Lyndsay |
Authors: | Foullon, C., Verwichte, E., Nakariakov, V.M., and Fletcher, L. |
College/School: | College of Science and Engineering > School of Physics and Astronomy |
Journal Name: | Astronomy and Astrophysics |
Publisher: | EDP Sciences |
ISSN: | 0004-6361 |
ISSN (Online): | 1432-0746 |
Copyright Holders: | Copyright © 2005 EDP Sciences |
First Published: | First published in Astronomy and Astrophysics 440(2):L59-L62 |
Publisher Policy: | Reproduced in accordance with the copyright policy of the publisher |
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