Jain, R., Maurya, R.A. and Hindman, B.W. (2015) Fundamental-mode Oscillations of Two Coronal Loops within a Solar Magnetic Arcade. Astrophysical Journal Letters, 804 (1). L19. ISSN 2041-8205
Abstract
We analyze intensity variations, as measured by the Atmospheric Imaging Assembly in the 171 Å passband, in two coronal loops embedded within a single coronal magnetic arcade. We detect oscillations in the fundamental mode with periods of roughly 2 minutes and decay times of 5 minutes. The oscillations were initiated by interaction of the arcade with a large wavefront issuing from a flare site. Further, the power spectra of the oscillations evince signatures consistent with oblique propagation to the field lines and for the existence of a two-dimensional waveguide instead of a one-dimensional one.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 American Astronomical Society. This is an author produced version of a paper subsequently published in Astrophysical Journal Letters. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Sun: activity; Sun: atmosphere; Sun: corona; Sun: coronal mass ejections (CMEs); Sun: flares; Sun: oscillations |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Science (Sheffield) > School of Mathematics and Statistics (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 24 Mar 2016 11:56 |
Last Modified: | 24 Mar 2016 12:03 |
Published Version: | https://dx.doi.org/10.1088/2041-8205/804/1/L19 |
Status: | Published |
Publisher: | American Astronomical Society |
Refereed: | Yes |
Identification Number: | 10.1088/2041-8205/804/1/L19 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96681 |