Photoelectric observations of Fe XIV coronal depletion - 20 April 1976

Details Photoelectric observations of Fe XIV coronal depletion - 20 April 1976 Photoelectric observations of Fe XIV coronal depletion - 20 April 1976

Nov 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977soph...55..135f&link_type=abstract

Solar Physics, vol. 55, Nov. 1977, p. 135-141. USAF-supported research.

Physics

2

Electron Density (Concentration), Emission Spectra, Iron, Solar Corona, Solar Spectra, Density Distribution, Metal Ions, Solar Limb, Solar Physics

Scientific paper

On 20 April 1976 a coronal emission line transient was observed on the west limb of the sun using a 5303-A Fe XIV emission line detection system and the Sacramento Peak Observatory's 40 cm coronagraph. The transient was observed at a single sample point, and the time scale for this event was found to be about 40 min. Limb scans before and after the event are used to estimate the amount of coronal mass involved in this relatively slow event. A depletion of the inner coronal of 4.4 times 10 to the 38th power electrons is inferred by differencing pre- and post-event model electron density distributions.

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