Coronal Heating by Collision and Cancellation of Magnetic Elements

Details Coronal Heating by Collision and Cancellation of Magnetic Elements Coronal Heating by Collision and Cancellation of Magnetic Elements

Oct 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999apj...524..483l&link_type=abstract

The Astrophysical Journal, Volume 524, Issue 1, pp. 483-495.

Astronomy and Astrophysics

Astronomy

26

Sun: Corona, Sun: Magnetic Fields, Sun: X-Rays, Gamma Rays

Scientific paper

A model is proposed for the coronal response to the interaction between randomly moving photospheric magnetic flux elements. In this model the collision between two elements of opposing signs results in reconnection and the appearance of an X-ray bright point. A section of quiet Sun on which elements are distributed and moving randomly will contain a number of X-ray bright points. The model combines a distribution of element sizes, random velocities of the elements, and a model for pair-wise collisions. This results in quantitative predictions for surface density of X-ray bright points, the distribution of their luminosities, and their contribution to the total heat flux in the quiet Sun. The predictions depend principally on the densities of flux elements of each sign B_+ and B_-, the average element size Φ, and the random velocity v_0. The predicted heat flux, F_XBP=0.1B_+B_-v_0, is in rough agreement with published observational studies of X-ray bright points but well below the flux required to supply heat to the quiet Sun corona. Other predictions of the model are similarly consistent with published studies.

Affiliated with

Also associated with

No associations

Rating

Coronal Heating by Collision and Cancellation of Magnetic Elements 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 Coronal Heating by Collision and Cancellation of Magnetic Elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Coronal Heating by Collision and Cancellation of Magnetic Elements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1083987