Structures and Global Distribution of Solar Prominences at Different Solar Latitude During the Raising Period of Solar Cycle 23

Details Structures and Global Distribution of Solar Prominences at Different Solar Latitude During the Raising Period of Solar Cycle 23 Structures and Global Distribution of Solar Prominences at Different Solar Latitude During the Raising Period of Solar Cycle 23

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufmsh11c0722c&link_type=abstract

American Geophysical Union, Fall Meeting 2001, abstract #SH11C-0722

Other

7524 Magnetic Fields, 7531 Prominence Eruptions

Scientific paper

Sun spots and soft-X-ray coronal loops in the middle latitude show a periodic structure during the raising period of solar cycle 23. Such a periodic structure has been attributed to the existence of Rossby wave in the solar atmosphere. Since circulations on the two sides of a Rossby wave have different characteristics, we suppose that the structure of solar prominence in high latitude is different from those in the middle and low latitude. To verify our hypothesis, we study the global distribution and evolution of filaments on solar disk and 3-D structure of prominences at limb during the raising period of solar cycle 23. Our results are consistent with our initial hypothesis. Namely, the convergent flow in the latitude lower than the Rossby wave can lead to maximum magnetic strength at the center of vortex flow. As a result, prominences in this region are characterized by a thin filament structure with possible anti-S shaped configuration in the northern hemisphere but S-shaped configuration in the southern hemisphere. On the other hand, the divergent flow in the latitude higher than the Rossby wave can result in a cylindrical shell with maximum magnetic field strength. Prominence associated with this type of magnetic configuration often shows a spring-like 3-D configuration at limb or a relative thick and loose filament structure on the disk. Since hot plasma confined by a cylindrical surface of strong magnetic field is unstable to interchange-mode instability, it may explain why the prominence in high latitude often breaks into many segments. Large-scale plasma circulation associated with the long-lived broken prominences in the high latitute will also be discussed.

Affiliated with

Also associated with

No associations

Rating

Structures and Global Distribution of Solar Prominences at Different Solar Latitude During the Raising Period of Solar Cycle 23 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 Structures and Global Distribution of Solar Prominences at Different Solar Latitude During the Raising Period of Solar Cycle 23, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structures and Global Distribution of Solar Prominences at Different Solar Latitude During the Raising Period of Solar Cycle 23 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1379931