Observations of time variation in the sun's rotation

Details Observations of time variation in the sun's rotation Observations of time variation in the sun's rotation

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993sci...260.1778w&link_type=abstract

Science (ISSN 0036-8075), vol. 260, no. 5115, p. 1778-1781.

Astronomy and Astrophysics

Astronomy

20

Solar Convection (Astronomy), Solar Cycles, Solar Interior, Solar Rotation, Time Measurement, Angular Velocity, Solar Observatories, Solar Oscillations

Scientific paper

Observations of solar p-mode frequency splittings obtained at Big Bear Solar Observatory in 1986 and during 1988-90 reveal small (about 1 percent) changes in the sun's subsurface angular velocity with solar cycle. An asymptotic inversion of the splitting data yields the latitude dependence of the rotation rate and shows that the largest changes in the angular velocity, about 4 nanoHz, occurred between 1986 and the later years, at high (about 60 deg) solar latitudes. Earlier helioseismic observations suggest that solar cycle changes in the ratio of magnetic to turbulent pressure in the solar convection zone are large enough to account for the magnitude of the observed angular velocity variations, but a detailed model of the phenomenon does not exist.

Affiliated with

Also associated with

No associations

Rating

Observations of time variation in the sun's rotation 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 Observations of time variation in the sun's rotation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of time variation in the sun's rotation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1336457