Evolution of a Coronal Mass Ejection and its Magnetic Field in Interplanetary Space

Details Evolution of a Coronal Mass Ejection and its Magnetic Field in Interplanetary Space Evolution of a Coronal Mass Ejection and its Magnetic Field in Interplanetary Space

Jun 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010apj...715l..80k&link_type=abstract

The Astrophysical Journal Letters, Volume 715, Issue 2, pp. L80-L83 (2010).

Astronomy and Astrophysics

Astronomy

5

Solar-Terrestrial Relations, Stars: Flare, Sun: Corona, Sun: Coronal Mass Ejections: Cmes, Sun: Flares, Sun: Particle Emission

Scientific paper

This Letter presents the first theoretical study of the dynamics of a coronal mass ejection (CME) observed by STEREO-A/B. The CME was continuously tracked by SECCHI-A, providing position-time data from eruption to 1 AU. The ejecta was intersected by STEREO-B at 1 AU, where the magnetic field and plasma parameters were measured. The observed CME trajectory and the evolution of the CME magnetic field are modeled using the semianalytic erupting flux-rope model. It is shown that the best-fit theoretical solution is in good agreement—within 1% of the measured CME trajectory in the 1 AU field of view—and is consistent with the in situ magnetic field and plasma data at 1 AU.

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