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Why Is The Suns Corona Hotter Than The Sun Itself
Posted: Tue Dec 14, 2010 1:28 am
by The Code
Why Is The Suns Corona Hotter Than The Sun Itself
http://www.spacedaily.com/reports/Why_I ... tself.html
what is the reason? What could be the reason?
tc
Re: Why Is The Suns Corona Hotter Than The Sun Itself
Posted: Tue Dec 14, 2010 2:49 am
by Chris Peterson
It's an unsolved problem. But that isn't to say there aren't good ideas on the matter. Probably most solar physicists believe the heating is produced by collapsing electric currents in the corona, those currents being induced by the Sun's magnetic field. Many also implicate various energy transport mechanisms from beneath the photosphere, such as sound or radio waves.
Re: Why Is The Suns Corona Hotter Than The Sun Itself
Posted: Wed Jan 26, 2011 9:37 pm
by dougettinger
Chris Peterson wrote:
It's an unsolved problem. But that isn't to say there aren't good ideas on the matter. Probably most solar physicists believe the heating is produced by collapsing electric currents in the corona, those currents being induced by the Sun's magnetic field. Many also implicate various energy transport mechanisms from beneath the photosphere, such as sound or radio waves.
Why would the electric currents have to collapse ? Would not the electric currents themselves that encircle the magnetic field lines create heat due to the resistance while passing through the plasma environment ?
Doug Ettinger
Pittsburgh, PA
01/26/2011
Re: Why Is The Suns Corona Hotter Than The Sun Itself
Posted: Wed Jan 26, 2011 10:45 pm
by Chris Peterson
dougettinger wrote:Why would the electric currents have to collapse ? Would not the electric currents themselves that encircle the magnetic field lines create heat due to the resistance while passing through the plasma environment ?
No, there wouldn't be nearly enough energy dissipation to provide the necessary heating.
Re: Why Is The Suns Corona Hotter Than The Sun Itself
Posted: Fri Jan 28, 2011 2:43 pm
by dougettinger
So the magnetic field lines fluctuate in strength thereby collapsing and re-collapsing the electric currents which should cause the most heat energy. Heat is produced by the transfer of charge over time through a potential difference. Is this idea correct ?
Doug Ettinger
Pittsburgh, PA
Re: Why Is The Suns Corona Hotter Than The Sun Itself
Posted: Fri Jan 28, 2011 2:47 pm
by bystander
Re: Why Is The Suns Corona Hotter Than The Sun Itself
Posted: Fri Jan 28, 2011 2:57 pm
by dougettinger
Thanks for supplying the newest references on this subject.
Doug Ettinger