Characteristics of oscillatory-wave processes in solar structures with various magnetic field topology

Details Characteristics of oscillatory-wave processes in solar structures with various magnetic field topology Characteristics of oscillatory-wave processes in solar structures with various magnetic field topology

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009arep...53..957k&link_type=abstract

Astronomy Reports, Volume 53, Issue 10, pp.957-967

Astronomy and Astrophysics

Astronomy

5

Electric And Magnetic Fields, Solar Magnetism, Photosphere, Chromosphere, Coronal Holes, Coronal Mass Ejection, Flares

Scientific paper

Recognizing that waves play an important role in energy-exchange processes between layers of the solar atmosphere, and that the characteristics of propagating waves are determined by the physical conditions of the medium, and, most importantly, the magnetic-field configuration, we have carried out a comparative analysis of the properties of oscillations in solar structures with various magnetic-field topologies: sunspots, faculae, and coronal holes. Simultaneous measurements of the Doppler velocities and intensities at the photospheric and chromospheric levels were accompanied by episodic measurements of the longitudinal magnetic field. In the chromosphere, spot umbrae dominate the three-minute oscillations, while lower-frequency modes are also observed in the penumbrae and at the outer parts of spots. Clear signs of propagating waves have been observed at the bases of coronal holes and in faculae only at frequencies close to 3 mHz.

Affiliated with

Also associated with

No associations

Rating

Characteristics of oscillatory-wave processes in solar structures with various 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 Characteristics of oscillatory-wave processes in solar structures with various magnetic field topology, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Characteristics of oscillatory-wave processes in solar structures with various magnetic field topology will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-805952