Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...306..751w&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 306, July 15, 1986, p. 751-761.
Astronomy and Astrophysics
Astrophysics
15
Magnetohydrodynamics, Photosphere, Solar Atmosphere, Solar Magnetic Field, Field Strength, Magnetic Field Configurations, Magnetohydrodynamic Waves
Scientific paper
We examine the responses of the magnetic field and the atmospheric plasma to locally converging or diverging mass motions near the photo spheric magnetic neutral line, using a self-consistent, two-dimensional, nonplanar, time-dependent MHD model. This is an exploratory study using an MHD model, where we emphasize the self-consistency of the model, in contrast to using ad hoc realistic assumptions. The numerical results imply the following physical consequences in the solar atmosphere: (1) the development of a general atmospheric circulation with maximum motion occurring along the neutral line in the case of convergence, (2) a rapid rise of field lines and the development of a slow circulation with upward plasma-flow motion along the neutral line in the case of divergence. (3) During these converging and diverging motions, the generated MHD fast modes of rarefaction and compression waves result in a significant cooling and heating of the corona. In addition, a wide range of parameters (i.e., speed of motion and various plasma β0 0) were examined. We show that the deformation of the magnetic field is strongly dependent on these parameters. Some of the numerical results may be associated with various observed solar phenomena, e.g., the submerging and emerging of magnetic flux and formation of low-lying loops.
Hu Yong-Qing
Nakagawa Yasuhiro
Tandberg-Hanssen Einar
Wu Shi Tsan
No associations
LandOfFree
Induced mass and wave motions in the lower solar atmosphere. II - Effects of converging and diverging photospheric motions 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 Induced mass and wave motions in the lower solar atmosphere. II - Effects of converging and diverging photospheric motions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Induced mass and wave motions in the lower solar atmosphere. II - Effects of converging and diverging photospheric motions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1654820