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Electron Density Enhancement During an UV Explosive Event

Published online by Cambridge University Press:  13 May 2016

M. S. Madjarska ,
J. G. Doyle  and
L. Teriaca
M. S. Madjarska
Affiliation:
Armagh Observatory, Armagh BT61 9DG, N. Ireland
J. G. Doyle
Affiliation:
Armagh Observatory, Armagh BT61 9DG, N. Ireland
L. Teriaca
Affiliation:
Armagh Observatory, Armagh BT61 9DG, N. Ireland

Abstract

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High resolution temporal observations performed with the SUMER spectrometer on SoHO provide us the opportunity to investigate the electron density variations in the solar mid-transition region due to explosive event-like phenomena. The O IV 1401.16/1404.81 density sensitive line intensity ratio shows a clear increase during a strong explosive event, corresponding to an electron density enhancement of a factor of ~ 3 with respect to pre-event values. This is consistent with recent MHD simulations (2.5 D).

Type
Session IV: Structure and Dynamics of the Transiton Region and Corona
Information
Symposium - International Astronomical Union , Volume 203: Recent Insights into the Physics of the Sun and Heliosphere: Highlights from Soho and Other Space Missions , 2001 , pp. 407 - 409
Copyright
Copyright © Astronomical Society of the Pacific 2001 

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