lundi 2 mars 2020

Coronal heating problem solved?

Free access paper here;

First direct observation of a torsional Alfvén oscillation at coronal heights
Kohutova, P. et al.
https://www.aanda.org/articles/aa/ab...a37144-19.html

Obviously my title is slightly misleading - this doesn't totally solve the problem, but goes some way towards doing so. Alfven waves are one of the major contributors that are thought to heat the corona. It was only a hypothesis, but now it seems that such a wave has been observed.

In something of an ironic twist, the waves, named after Hannes Alfven, were generated due to magnetic reconnection. Alfven denied that MR could happen under the faulty conditions he applied to it.

This is going to cause much wailing and gnashing of teeth amongst the EU wooists!


via International Skeptics Forum https://ift.tt/2uKYQlo

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