Vertical Flow in Supergranules

Details Vertical Flow in Supergranules Vertical Flow in Supergranules

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009spd....40.0931d&link_type=abstract

American Astronomical Society, SPD meeting #40, #9.31; Bulletin of the American Astronomical Society, Vol. 41, p.822

Astronomy and Astrophysics

Astronomy

Scientific paper

Measuring the vertical flow in supergranules is a long-standing and difficult problem. We have tried a new strategy that has met with some success, using Doppler maps from the Michelson Doppler Imager (MDI) on SOHO. From maps of the horizontal divergence signal measured from the time-distance helioseismology of f modes, cells are identified by local peaks in the divergence signal. The surface Doppler signal is then averaged about these cell locations, to obtain a mean Doppler signal. Averaging over many cells yields a statistically stable result. From simultaneous magnetograms, systematic effects associated with magnetic elements have been examined. An upward vertical flow in the center half of cells and a downward flow in the outer half are found, much as if the supergranules are simple convective structures.

Affiliated with

Also associated with

No associations

Rating

Vertical Flow in Supergranules 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 Vertical Flow in Supergranules, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vertical Flow in Supergranules will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1112116