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Solar feature tracking in both spatial and temporal domains

Published online by Cambridge University Press:  01 September 2007

D. B. Jess ,
M. Mathioudakis ,
R. Erdélyi ,
G. Verth ,
R. T. J. McAteer  and
F. P. Keenan
D. B. Jess
Affiliation:
Astrophysics Research Centre, School of Mathematics and Physics, Queen's University, Belfast, BT7 1NN, Northern Ireland, UK email: djess01@qub.ac.uk NASA Goddard Space Flight Center, Solar Physics Laboratory, Code 671, Greenbelt, MD 20771, USA
M. Mathioudakis
Affiliation:
Astrophysics Research Centre, School of Mathematics and Physics, Queen's University, Belfast, BT7 1NN, Northern Ireland, UK email: djess01@qub.ac.uk
R. Erdélyi
Affiliation:
SP2RC, Department of Applied Mathematics, The University of Sheffield, Sheffield, S3 7RH, England, U.K.
G. Verth
Affiliation:
SP2RC, Department of Applied Mathematics, The University of Sheffield, Sheffield, S3 7RH, England, U.K.
R. T. J. McAteer
Affiliation:
NASA Goddard Space Flight Center, Solar Physics Laboratory, Code 671, Greenbelt, MD 20771, USA
F. P. Keenan
Affiliation:
Astrophysics Research Centre, School of Mathematics and Physics, Queen's University, Belfast, BT7 1NN, Northern Ireland, UK email: djess01@qub.ac.uk
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Abstract

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A new method for automated coronal loop tracking, in both spatial and temporal domains, is presented. The reliability of this technique was tested with TRACE 171 Å observations. The application of this technique to a flare-induced kink-mode oscillation, revealed a 3500 km spatial periodicity which occur along the loop edge. We establish a reduction in oscillatory power, for these spatial periodicities, of 45% over a 322 s interval. We relate the reduction in oscillatory power to the physical damping of these loop-top oscillations.

Keywords

Sun: activitySun: atmospheric motionsSun: coronaSun: evolutionSun: flaresSun: oscillations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S247: Waves & Oscillations in the Solar Atmosphere: Heating and Magneto-Seismology , September 2007 , pp. 288 - 295
Copyright
Copyright © International Astronomical Union 2008

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