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MHD and Plasma Interpretation of a Prominence Eruption Observed by SOHO

Published online by Cambridge University Press:  12 April 2016

P.C.H. Martens
P.C.H. Martens*
Affiliation:
ESA Space Science Department, SOHO Experiment Operations Facility Code 682.3, GSFC, Greenbelt, MD 20771, USA

Abstract

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Data on the May 1, 1996 prominence eruption, jointly observed by CDS, SUMER, and EIT, aboard SOHO, Yohkoh-SXT, and Kitt Peak and Meudon observatories are analyzed to obtain information on the plasma temperature, density, and velocities, as well as the magnetic field topology and strength. It is found that the ‘standard’ model of an erupting helical flux tube probably applies, although questions arise on the MHD stability of the prominence flux tube. The prominence is observed to remain relatively cool during its eruption (≤ 5 × 105 K), while the density and velocity vary considerably on scales down to the limit of resolution. It is found that the high density, high velocity plasma blobs can be contained by the relatively weak magnetic field, as is indeed observed.

Type
Birth and Death of Filaments
Information
International Astronomical Union Colloquium , Volume 167: New Perspectives on Solar Prominences , 1998 , pp. 294 - 301
Copyright
Copyright © Astronomical Society of the Pacific 1998

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