Thermal Conduction in the Transitino Region and its Effects on the Energy Balance of Open Coronal Regions

Computer Science

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

Thermal conductive energy flow into the transition region represents a considerable energy loss for the solar corona. Inclusion of this term lead to a new class of self-consistent models for magnetically open coronal regions. Recently a number of modifications of the thermal conductivity term were suggested, mainly in order to account for the emission measure reversal in the lower transition region. These suggestions include the contributions by ions and neutrals to thermal conduction, ambipolar diffusion, and turbulence. We show that diffusion, since it affects only the lowermost parts of the transition region, does not significantly change the global properties of the corona, unless the transition region base pressure is chosen unrealistically small. This behavior is explained in terms of the boundary layer character of the lower transition region in such models. By contrast, turbulence can enhance the conductivity more drastically and up to higher temperatures. For! large and intermediate pressures, turbulent conduction tends to flatten the lower, but to steepen the remainder of the transition region. The overall thickness of the transition region is reduced, but the total energy losses are enhanced compared to models based on the Spitzer conductivity. The minimum possible energy losses of the corona are also enhanced. The coronal temperature that minimizes the energy losses, however, does not depend much on the type of conductivity.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Thermal Conduction in the Transitino Region and its Effects on the Energy Balance of Open Coronal Regions 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 Thermal Conduction in the Transitino Region and its Effects on the Energy Balance of Open Coronal Regions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermal Conduction in the Transitino Region and its Effects on the Energy Balance of Open Coronal Regions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-821611

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.