34th Solar Physics Division Meeting, June 2003
Session 10 Transequatorial and other Coronal Structures
Oral, Tuesday, June 17, 2003, 9:00am-12:00noon, Auditorium

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[10.08] Observing the Dynamic Corona: Diagnostics to Determine Coronal Heating

A.R. Winebarger (NRL/CPI), H.P Warren, J.T. Mariska (NRL)

High resolution observations made with TRACE have uncovered a dynamic solar corona. Many of these observations indicate that TRACE is imaging cooling loops (i.e., the loop appears in the TRACE filter sensitive to hotter plasma before it appears in the cooler TRACE filters.) Significant information can be garnered from the TRACE observations. For instance, the delay between the appearance of loop in different filters provides information on the cooling time of the plasma and, hence, the total energy deposited in the loop. The cooling time also indicates a density and hence can be used to determine the degree of filamentation within a loop. TRACE observations of cooling loops, however, tell us little about the spatial and temporal scales for energy deposition. In this talk, we will discuss other diagnostics necessary to pinpoint the magnitude, duration, and location of the heating. The purpose of this talk is to establish the criteria of the necessary spatial, spectral, and temperature resolution necessary to discriminate between the coronal heating theories.

The author(s) of this abstract have provided an email address for comments about the abstract: winebarger@nrl.navy.mil

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Bulletin of the American Astronomical Society, 35 #3
© 2003. The American Astronomical Soceity.