Solar Physics Division Meeting 2000, June 19-22
Session 2. Corona, Solar Wind, Flares, CMEs, Solar-stellar, Instrumentation, Other
Display, Chair: J. Krall, Monday-Thursday, June 19, 2000, 8:00am-6:00pm, Forum Ballroom

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[2.06] The Solar Upper Transition Region. I. High Resolution FUV-EUV Imaging and Modeling of Unresolved Coronal Funnels as Observed with the Multi-Spectral Solar Telescope Array, II

D. S. Martinez-Galarce (W. W. Hansen Experimental Physics Laboratory, Stanford University), A. B. C. Walker, II (Department of Physics, Stanford University), R. B. Hoover (Space Science Laboratory, NASA Marshall Space Flight Center), T. W. Barbee, II (Lawrence Livermore National Laboratory)

A coronal funnel model is tested against 171 Å\ spectroheliograms recorded using a sounding rocket experiment flown on 3 November, 1994, called the Multi-Spectral Solar Telescope Array, II (MSSTA II). MSSTA, a joint project of Stanford University, the NASA Marshall Space Flight Center, and the Lawrence Livermore National Laboratory, is an observing platform composed of a set of normal-incidence, multilayer-coated optics designed to obtain narrow bandpass images at selected FUV, EUV and XUV wavelengths (44 Å- 1550 Å). Using the 1550 Å(C IV) and 171 Å(Fe IX/X) images, the funnel model, that is based on coronal back-heating, was constructed and tested against the data. Incorporating global coverage observations, we demonstrate that certain classes of funnels can account for the quiescent, globally diffuse and unresolved emission seen in 171 Å\ spectroheliograms, suggesting this emission is mostly of upper transition region origin and composed mostly of Fe IX emission, as seen in the MSSTA observations. Furthermore, the classes of funnel models obtained, simultaneously satisfy areal coverage constraints observed at both 171 (60 - 90 confirmed by other solar observations.

The author(s) of this abstract have provided an email address for comments about the abstract: Varian Physics Laboratory, Stanford University, Stanford, CA 94305-4060

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