SONAR - Solar Near-surface Active Region Rendering

Details SONAR - Solar Near-surface Active Region Rendering SONAR - Solar Near-surface Active Region Rendering

May 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...194.7606s&link_type=abstract

American Astronomical Society, 194th AAS Meeting, #76.06; Bulletin of the American Astronomical Society, Vol. 31, p.957

Astronomy and Astrophysics

Astronomy

1

Scientific paper

The processes in the top 20,000-km of the Sun's convection zone govern the growth and decay of active regions and provide the magnetic flux and energy for the active phenomena of the upper solar atmosphere. The MDI experiment on SOHO has demonstrated that this region is now accessible to study by means of local helioseismology. However, SOHO provides neither the temporal nor spatial resolution and coverage necessary to exploit these techniques to study the eruption and evolution of active region magnetic structures. The SONAR mission with moderate resolution full disk Doppler and vector magnetic field observations, and atmospheric magnetic connectivity observations via EUV imaging can provide the necessary data. The science motivation and general instrumentation requirements for the mission are presented.

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