Acceleration in Fast Halo CMEs and Synchronized Flare HXR Bursts

Details Acceleration in Fast Halo CMEs and Synchronized Flare HXR Bursts Acceleration in Fast Halo CMEs and Synchronized Flare HXR Bursts

Jan 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008apj...673l..95t&link_type=abstract

The Astrophysical Journal, Volume 673, Issue 1, pp. L95-L98.

Astronomy and Astrophysics

Astronomy

49

Sun: Coronal Mass Ejections (Cmes), Sun: Flares, Sun: X-Rays, Gamma Rays

Scientific paper

We study two well-observed, fast halo CMEs, covering the full CME kinematics including the initiation and impulsive acceleration phase, and their associated flares. We find a close synchronization between the CME acceleration profile and the flare energy release as indicated by the RHESSI hard X-ray flux onsets, as well as peaks occur simultaneously within 5 minutes. These findings indicate a close physical connection between both phenomena and are interpreted in terms of a feedback relationship between the CME dynamics and the reconnection process in the current sheet beneath the CME.

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