Solar oscillations with 13-day period

Details Solar oscillations with 13-day period Solar oscillations with 13-day period

Aug 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.304..517d&link_type=abstract

Nature (ISSN 0028-0836), vol. 304, Aug. 11, 1983, p. 517, 518. NASA-supported research.

Physics

2

Periodic Variations, Solar Oscillations, Magnetic Signatures, Radii, Solar Diameter, Solar Magnetic Field

Scientific paper

Reference is made to the solar observations made by Claverie et al. (1982) over a three-month period in the summer of 1981 which show oscillatory velocity with a period of 13.1 days and amplitude of 6.6 m/s. These investigators reject the possibility that they see the Doppler shift from a radial oscillation, because the amplitude is implausibly large. They also do not believe that their signal was induced by solar magnetic fields, since typical mean solar fields are too small. Photo-electric drift-scan measurements of the solar diameter and full-disk magnetograms taken at Kitt Peak National Observatory are examined here for evidence of variations corresponding to the velocity oscillations of the 13.1-day period. An upper limit on radius variations is reported which is a factor of six below the amplitude needed to explain the velocity observations as a radial oscillation. Attention is also given to the possible role of the rotation of large-scale surface magnetic features.

Affiliated with

Also associated with

No associations

Rating

Solar oscillations with 13-day period 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 Solar oscillations with 13-day period, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Solar oscillations with 13-day period will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1471981