Helioseismology and the Solar Cycle

Details Helioseismology and the Solar Cycle Helioseismology and the Solar Cycle

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.4204k&link_type=abstract

American Astronomical Society, 194th AAS Meeting, #42.04; Bulletin of the American Astronomical Society, Vol. 31, p.882

Other

Scientific paper

Helioseismic data show temporal variations that are clearly related to the solar cycle. It is well-established that the central frequencies of p-modes vary with solar activity, while it is a recent result that the even-a coefficients vary with the corresponding components of the surface magnetic fields. The frequency variations seem to be mainly due to near surface effects, but the physical relation between these variations and the surface magnetic fields has not been established yet. The solar-cycle variation of other mode parameters, such as mode width and amplitude, which relate to the excitation and damping of p-modes, are less well known. With GONG operating for over 3 years by now and SOHO for 2 years, we have data sets available which continually cover the end of solar cycle 22 and the beginning of solar cycle 23. This allows us to study the solar cycle variation of p-mode parameters with unprecedented detail. I will discuss recent results and some of their implications.

Affiliated with

Also associated with

No associations

Rating

Helioseismology and the Solar Cycle 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 Helioseismology and the Solar Cycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Helioseismology and the Solar Cycle will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1120351