HR: 16:00h
AN: SH44A-01 INVITED     [Abstracts]
TI: Why We Need Imaging Spectroscopy
AU: * Klimchuk, J A
EM: klimchuk@nrl.navy.mil
AF: Naval Research Lab, 4555 Overlook Ave., Washington, DC 20375 United States
AB: Despite excellent progress in recent years in understand fundamental solar physics problems such as coronal heating, solar wind acceleration, flares, and coronal mass ejections, there remain many crucial questions that are still unanswered. Limitations in the observations are one important reason. Both theoretical and observational considerations point to the importance of small spatial scales, impulsive energy release, strong dynamics, and extreme plasma nonuniformity. As a consequence, high spatial resolution, broad temperature coverage, high temperature fidelity, and sensitivity to velocities and densities are all critical observational parameters. Current instruments lack one or more of these properties, and this has led to considerable ambiguity and confusion. In this talk, I will discuss some of the ways that spectroscopic information is vital to further progress, giving particular emphasis to the coronal heating problem. I will argue that a high-speed imaging spectrometer must be a top priority instrument for the future.
DE: 7509 Corona
DE: 7546 Transition region
DE: 7549 Ultraviolet emissions
DE: 7554 X-rays, gamma rays, and neutrinos
DE: 7594 Instruments and techniques
SC: SPA-Solar and Heliospheric Physics [SH]
MN: Fall Meeting 2005