Physics – Plasma Physics
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010agufmsh14a..01m&link_type=abstract
American Geophysical Union, Fall Meeting 2010, abstract #SH14A-01
Physics
Plasma Physics
[7500] Solar Physics, Astrophysics, And Astronomy, [7509] Solar Physics, Astrophysics, And Astronomy / Corona, [7511] Solar Physics, Astrophysics, And Astronomy / Coronal Holes, [7836] Space Plasma Physics / Mhd Waves And Instabilities
Scientific paper
We use observations with AIA onboard SDO and report the discovery of ubiquitous Alfvenic oscillations in the corona of quiet Sun, active regions and coronal holes. These Alfvenic oscillations have significant power, and seem to be connected to the chromospheric Alfvenic oscillations previously reported with Hinode. We use Monte Carlo simulations to determine the strength and periods of the waves. Using unique joint observations of Hinode, the Solar Dynamics Observatory, and HAO's CoMP instrument we study the excitation of transverse oscillations as a function of space, time, and temperature. We will discuss the energetic impact and diagnostic capabilities of this ever-present process and how it can be used to build a more self-consistent picture of energy transport into the inner heliosphere. Transverse Oscillations Observed Above the Solar North Pole in the He II 304Å (bottom) and Fe IX 171Å (top) channels. Studying the progression of such points with altitude yields important information about wave propagation into the magnetically open corona.
Carlsson Marcus
de Pontieu Bart
Hansteen Viggo H.
McIntosh Scott W.
Sdo/Aia Mission Team
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