Astronomy and Astrophysics – Astronomy
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...200.5607d&link_type=abstract
American Astronomical Society, 200th AAS Meeting, #56.07; Bulletin of the American Astronomical Society, Vol. 34, p.735
Astronomy and Astrophysics
Astronomy
Scientific paper
Over the last 30-40 years spectroscopic observation of the EUV line emission has proved invaluable as a diagnostic of the solar coronal plasma state. Line ratios have been used to determine electron density, electron temperature and ion flow velocity. In this paper, we present results obtained with a new measurement technique that uses spectroscopic observations of the white light corona to obtain the electron density, temperature, and flow velocity. A prototype instrument has been designed and built to obtain visible light spectra (3800-4300 A) with modest resolution. This instrument was used to obtain coronal observations during the June 2001 eclipse in Zambia. The data were corrected for sky and instrument transmission to derive the electron temperature and flow speed. Results from these measurements will be discussed.
Cyr Orville Chris St.
Davila Jose Manuel
Nelson Randy
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