Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998apj...493..474o&link_type=abstract
Astrophysical Journal v.493, p.474
Astronomy and Astrophysics
Astronomy
45
Magnetohydrodynamics: Mhd, Sun: Chromosphere, Sun: Corona, Sun: Magnetic Fields, Waves
Scientific paper
We present the first model of resonant heating of coronal loops that incorporates the dependence of the loop density on the heating rate. By adopting the quasi-static equilibrium scaling law rho ~ Q5/7, where rho is the density and Q is the volumetric heating rate, we are able to approximate the well-known phenomena of chromospheric evaporation and chromospheric condensation, which regulate the coronal density. We combine this scaling law with a quasi-nonlinear MHD model for the resonant absorption of Alfven waves in order to study the spatial and temporal dependence of the heating. We find that the heating is concentrated in multiple resonance layers, rather than in the single layer of previous models, and that these layers drift throughout the loop to heat the entire volume. These newfound properties are in much better agreement with coronal observations.
Davila Jose Manuel
Klimchuk James A.
Ofman Leon
No associations
LandOfFree
A Self-consistent Model for the Resonant Heating of Coronal Loops: The Effects of Coupling with the Chromosphere 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 A Self-consistent Model for the Resonant Heating of Coronal Loops: The Effects of Coupling with the Chromosphere, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Self-consistent Model for the Resonant Heating of Coronal Loops: The Effects of Coupling with the Chromosphere will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1654130