Is the Solar Corona getting hotter?

Details Is the Solar Corona getting hotter? Is the Solar Corona getting hotter?

May 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003spd....34.1912a&link_type=abstract

American Astronomical Society, SPD meeting #34, #19.12; Bulletin of the American Astronomical Society, Vol. 35, p.844

Astronomy and Astrophysics

Astronomy

Scientific paper

Observations of the forbidden coronal lines Fe XIV 530.3 nm and Fe X 637.4 nm obtained at the National Solar Observatory at Sacramento Peak are used to determine the variation of coronal temperature at latitudes above 30 degrees during solar activity cycles 21, 22 and 23. Latitudes below 30 degrees are not studied, because the technique used to determine the coronal temperature is not applicable in active regions. The variation of temperature as a function of latitude and time is seen to be nearly symmetric about solar maximum and consistent between the northern and southern hemisphere during all three cycles. The variation with time at various latitudes will be studied in order to determine any long-term trends in coronal temperature.
The author was supported by the Air Force Office of Scientific Research.

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