Scientists crack 60-year-old mystery of Sun’s magnetic waves

[gary]

A December 2nd 2019 press release (http://www.exeter.ac.uk/news/research/title_768533_en.html) from the University of Exeter
describes research that is helping describe why the Sun's corona is
hotter than its surface and why as magnetic waves leave the interior,
they grow in strength.



Press release here :-
http://www.exeter.ac.uk/news/research/title_768533_en.html

"A chromospheric resonance cavity in a sunspot mapped with seismology"
by Jess et. al., asbstract, Nature :-
https://www.nature.com/articles/s41550-019-0945-2.

[bgilbert]

Although a different phenomenon is at play, the earths upper atmosphere at several hundred kilometers, can reach well over 2000 deg. C during the day.
However not measured with ordinary thermometer.