What Do High-resolution EIT Waves Tell Us About CMEs?

Details What Do High-resolution EIT Waves Tell Us About CMEs? What Do High-resolution EIT Waves Tell Us About CMEs?

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640229t&link_type=abstract

American Astronomical Society, AAS Meeting #216, #402.29

Astronomy and Astrophysics

Astronomy

Scientific paper

Although many studies have demonstrated that some coronal waves are not generated by coronal mass ejections, we have learned a great deal about the ability of coronal mass ejections to drive large-scale coronal waves, also called "EIT waves." We present new results based on EIT wave amplitude, timing, speed, and direction of propagation, with respect to their correlation with CME-related dimmings, speeds, locations and widths. Furthermore, we demonstrate the ability to correlate different aspects of EIT waves with some of the observed structure of CMEs observed in coronagraph data. Finally, we expand on the discussion of the types of wave modes that can be generated by a coronal mass ejection, and how these observations can serve as a diagnostic of the type of impulse a CME can deliver to the surrounding corona. These diagnostics are obtained by examining the motion of individual field lines, requiring high-resolution observations like those provided by TRACE and SDO/AIA.

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