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Thermal and Kinetic Properties of Motions in a Prominence Activation and Nearby LoopWe perform a quantitative analysis of the thermal properties of a prominence activation and motions in a nearby loop. In order to make measurements of the quickly moving features seen in prominences in the UV we use the SOHO/SUMER spectrograph to take a time series of exposures from a single pointing position, providing a measurement of spectral line properties as a function of time and position along the slit. The lines observed cover a broad range of temperatures from 80,000 - 1.6 million K. These measurements are combined with TRACE movies in transition region and coronal temperature bands to obtain more complete information concerning prominence structure and motions. The resulting observations allow us to analyze the thermal and kinetic energy of the moving sources as functions of time. The loop and prominence are most apparent in lines formed at temperatures below 250,000 K. We find that in most cases the temperature distribution of plasma in a moving feature changes relatively little over time periods of about 20 minutes.
Document ID
20050156635
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Kucera, Therese
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Landi, E.
(Artep, Inc. United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2005
Subject Category
Solar Physics
Meeting Information
Meeting: AGU, SPD et al Joint Assembly
Location: New Orleans, LA
Country: United States
Start Date: May 23, 2005
End Date: May 27, 2005
Sponsors: American Geophysical Union
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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