UVCS Measurement and Spectroscopic Diagnositics Working Group
Chairperson:
John L. Kohl
Group Coordinator:
Leonard Strachan
Scientific Purpose:
To develop the spectroscopic diagnostic and
measurement techniques needed to determine plasma parameters of
the extended solar corona and other objects with UVCS/SOHO. The
group will address both observational approaches and data analysis
techniques. Application of the knowledge of the instrument characterization
to the various diagnostic methods is an important aspect of the
work of this group. The group is to produce detailed descriptions
of the application of various diagnostic techniques to the UVCS data.
Diagnostic techniques to be developed by this group include, but are
not limited to the following: a) determination of electron temperature
from electron scattered H I Ly-alpha, b) Doppler dimming determinations
of bulk outflow velocities, c) determination of velocity distributions
for various ions from spectral line profile measurements (this effort
includes the development of methods to remove the effect of the
instrument degradation function from the data, and it also includes
the development of dithering techniques), d) detection
of MHD waves through time dependent measurements of intensity, spatial
position, or spectral line position, measurement of line-of-sight
bulk velocities from absolute line positions, and determination of
radial velocity distributions from Doppler dimming measurements.
Membership:
John Kohl, Silvano Fineschi, Larry Gardner, Margarita
Karovska, Ray O'Neal, Alexander Panasyuk, Peter Smith, Leonard Strachan,
and Raid Suleiman