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Multi-wavelength VLA and Spacecraft Observations of Evolving Coronal Structures Outside Flares

Published online by Cambridge University Press:  14 March 2005

R.F. Willson
R.F. Willson
Affiliation:
Department of Physics and Astronomy, Tufts University, Medford, MA 02155, USA
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Abstract

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Multi-wavelength Very Large Array (VLA), SOHO and RHESSI observations have been used to study the three- dimensional structure of evolving coronal loops and related signatures of impulsive and long-lasting energy release above active regions. Here, we discuss recent multiwavelength observations of an impulsive hard X-ray burst that was preceded by gradual changes in the structure of an extended coronal loop connecting the active region to one located on the other side of the solar equator, suggesting pre-burst magnetic evolution at different spatial scales. Changes in the 6 and 20 cm brightness temperature were also detected from the opposite footpoint region suggesting some sort of magnetic connectvity across the solar equator.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS223 , June 2004 , pp. 529 - 532
Copyright
© 2004 International Astronomical Union