AAS Meeting #194 - Chicago, Illinois, May/June 1999
Session 79. The Sun Close Up: Results from the TRACE Mission
Solar, Oral, Wednesday, June 2, 1999, 2:00-3:30pm, Continental Ballroom C

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[79.08] Effects of extinction in the quiet solar corona observed with TRACE

C.J. Schrijver (Stanford-Lockheed Institute for Space Research), R.A. McMullen (Smithsonian Astrophysical Observatory)

We use full-disk composite images of the solar corona as observed in the 171~Å\ (~1 MK) and 195~Å\ (~1.5 MK) pass bands of the Transition Region and Coronal Explorer to demonstrate that the emission from the quiet solar corona must necessarily be subjected to substantial extinction. We discuss the potential causes for these effects, including resonant scattering in the high, hot corona, and absorption by material at chromospheric temperatures in a multitude of dynamic structures embedded within the low corona.

This work was supported by contract NAS5-38099 with NASA Goddard Space Flight Center.

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