Heating of an erupting prominence associated with a solar coronal mass ejection on 2012 January 27

Abstract

We investigate the heating of an erupting prominence and loops associated with a coronal mass ejection and X-class flare. The prominence is seen in absorption in EUV at the beginning of its eruption. Later the prominence changes to emission, which indicates heating of the erupting plasma. We find the densities of the erupting prominence using the absorption properties of hydrogen and helium in different passbands. We estimate the temperatures and densities of the erupting prominence and loops seen as emission features using the differential emission measure method, which uses both EUV and X-ray observations from the Atmospheric Imaging Assembly on board Solar Dynamics Observatory and the X-ray Telescope on board Hinode. We consider synthetic spectra using both photospheric and coronal abundances in these calculations. We verify the methods for the estimation of temperatures and densities for the erupting plasmas. Then we estimate the thermal, kinetic, radiative loss, thermal conduction, and heating energies of the erupting prominence and loops. We find that the heating of the erupting prominence and loop occurs strongly at early times in the eruption. This event shows a writhing motion of the erupting prominence, which may indicate a hot flux rope heated by thermal energy release during magnetic reconnection.

Astrophysical Journal in press

References in corpus (10)

• Highly Efficient Modeling of Dynamic Coronal Loops
• Prominence and Filament Eruptions Observed by the Solar Dynamics Observatory: Statistical Properties, Kinematics, and Online Catalog
• On the Relationship Between a Hot-channel-like Solar Magnetic Flux Rope and its embedded Prominence
• Plasma Heating During a Coronal Mass Ejection Observed by SOHO
• An exploration of heating mechanisms in a supra-arcade plasma sheet formed after a coronal mass ejection
• Mass estimates of rapidly-moving prominence material from high-cadence EUV images
• Direct Evidence of an Eruptive, Filament-Hosting Magnetic Flux Rope Leading to a Fast Solar Coronal Mass Ejection
• In Situ Heating of the 2007 May 19 CME Ejecta Detected by STEREO/PLASTIC and ACE
• Mass and energy of erupting solar plasma observed with the X-Ray Telescope on Hinode
• X-Raying the Dark Side of Venus - Scatter from Venus Magnetotail?

Cited by in corpus (4)

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• Non-equilibrium ionization effects on solar EUV and X-ray imaging observations
• Elemental composition in quiescent prominences
• Accelerating and Supersonic Density Fluctuations in Coronal Hole Plumes: Signature of Nascent Solar Winds