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BEGIN:VEVENT
DTSTART;TZID=Atlantic/Canary:20171019T103000
DTEND;TZID=Atlantic/Canary:20171019T113000
UID:iactalks-997
X-WR-CALNAME: IAC Talks: Open Astronomy Seminars
X-ORIGINAL-URL: /iactalks/Talks/view/997
CREATED:2017-10-19T10:30:00+01:00
X-WR-CALDESC: IAC Talks upcomming talks
SUMMARY:Why is the Solar Corona so Hot?
DESCRIPTION:Why is the Solar Corona so Hot?\nProf. James Klimchuk\n\nThis f
 undamental question has challenged space scientists for decades. At temper
 atures of several million degrees, the corona is hundreds of times hotter 
 than the solar surface, and heat cannot simply flow upward against the tem
 perature gradient. (The same is true on other stars.) It is widely believe
 d that the energy responsible for the extreme temperatures is extracted fr
 om stressed magnetic fields that permeate the corona. This likely occurs i
 n the form of small impulsive energy bursts called nanoflares, but the det
 ails of how they work are still a matter of vigorous debate. Understanding
  these details is crucial, since the basic mechanisms are central to many 
 phenomena--on the Sun, within the heliosphere, and throughout the universe
 . I will review our current understanding of the coronal heating problem f
 rom both the observational and theoretical perspectives.
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