Properties of a Coronal Loop Structure with EIS, TRACE, and STEREO

Details Properties of a Coronal Loop Structure with EIS, TRACE, and STEREO Properties of a Coronal Loop Structure with EIS, TRACE, and STEREO

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.1217s&link_type=abstract

American Astronomical Society, SPD meeting #40, #12.17; Bulletin of the American Astronomical Society, Vol. 41, p.830

Astronomy and Astrophysics

Astronomy

Scientific paper

The physical properties of a coronal loop structure are investigated using three EUV observing instruments. The density, thermal width, and lifetime of a loop structure are found. Spectral coverage from EIS provides density and thermal information. Observations from TRACE and STEREO show the structure's geometry and intensity as a function of time in multiple wavebands. The isolated loop is straightened and characterized by a Gaussian fit to perpendicular cross-cuts of the observed structure. This allows for the extraction of background subtracted intensities which is important when isolating the coronal structure for analysis. These background subtracted intensities are then used to determine the thermal characteristics (temperature, emission measure ), density, structure width, and lifetime. These results provide much needed measurements of coronal loop structure.

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