Active Region Oscillations and Their Relation to the Magnetic Field Topology

Details Active Region Oscillations and Their Relation to the Magnetic Field Topology Active Region Oscillations and Their Relation to the Magnetic Field Topology

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005agusmsh13c..03m&link_type=abstract

American Geophysical Union, Spring Meeting 2005, abstract #SH13C-03

Physics

7507 Chromosphere, 7524 Magnetic Fields, 7529 Photosphere

Scientific paper

In this contribution we present an analysis of time sequences of MDI intensity and Doppler velocity together with simultaneous filtergrams taken by TRACE at 1700A in an active region. The high frequency halos found in MDI velocity and the deficiency of high frequency power sampled at the height of the TRACE UV filter around the active region can be explained by an interaction of the acoustic wave field with the magnetic field of the active region. From a magnetic field extrapolation we calculate the plasma β for the complete TRACE FOV up to the base of the corona. The contours giving the location of β approximately 1 where h=500 km agree very well with the decrease in 1700A high frequency power.

Affiliated with

Also associated with

No associations

Rating

Active Region Oscillations and Their Relation to the Magnetic Field Topology 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 Active Region Oscillations and Their Relation to the Magnetic Field Topology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Active Region Oscillations and Their Relation to the Magnetic Field Topology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1693224