The Viability of Ohmic Dissipation as a Coronal Heating Source

Details The Viability of Ohmic Dissipation as a Coronal Heating Source The Viability of Ohmic Dissipation as a Coronal Heating Source

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996apj...470.1192h&link_type=abstract

Astrophysical Journal v.470, p.1192

Astronomy and Astrophysics

Astronomy

39

Radiative Transfer, Sun: Corona, Sun: Magnetic Fields

Scientific paper

We have performed three-dimensional numerical simulations of the coronal heating model proposed by Parker (1972,1994) and have studied the steady state power balance between Poynting flux (P) and ohmic dissipation (Q). We demonstrate that this power balance exists and how P and Q scale with the driving velocity, granular coherence time, and loop length. We show that both P and Q compare well with the Markovian limit of the order-of-magnitude estimate given by Parker (1983). Our results further indicate a weak positive-exponent scaling with the Lundquist (conductivity) number. These results imply that line-tied photospheric convection can drive large enough current densities in the corona to make Parker's mechanism feasible.

Affiliated with

Also associated with

No associations

Rating

The Viability of Ohmic Dissipation as a Coronal Heating Source does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The Viability of Ohmic Dissipation as a Coronal Heating Source, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Viability of Ohmic Dissipation as a Coronal Heating Source will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1212827