Supergranules and Photospheric Motions Near the Solar Poles

Details Supergranules and Photospheric Motions Near the Solar Poles Supergranules and Photospheric Motions Near the Solar Poles

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.9303b&link_type=abstract

American Astronomical Society, 194th AAS Meeting, #93.03; Bulletin of the American Astronomical Society, Vol. 31, p.989

Astronomy and Astrophysics

Astronomy

Scientific paper

Since the SOHO launch in 1995, there have been seven opportunities for the Michelson Doppler Imager (MDI) to provide continuous Dopplergrams of the solar poles over extended intervals of time. Because of the nearly constant and uniform focus of the MDI images over small regions it is possible to resolve and track supergranules across the pole at these times. Seismic analysis of global modes from the MDI data has previously hinted at the possibility of a polar vortex in the upper convection zone. We report here on the first analysis of polar surface motions inferred from MDI data covering a total of about 2000 hours during five polar observing windows, including two full months around the south polar apparition of 1998. Research supported by SOI-MDI NASA grant NAG5-3077 at Stanford University.

Affiliated with

Also associated with

No associations

Rating

Supergranules and Photospheric Motions Near the Solar Poles 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 Supergranules and Photospheric Motions Near the Solar Poles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Supergranules and Photospheric Motions Near the Solar Poles will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1122516