Computer Science – Sound
Scientific paper
May 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...210.4602k&link_type=abstract
American Astronomical Society Meeting 210, #46.02; Bulletin of the American Astronomical Society, Vol. 39, p.160
Computer Science
Sound
2
Scientific paper
Prediction of emerging active regions and their evolution is one of the central problems of local helioseismology. Previous investigations showed that magnetic flux emerges very rapidly, so that it very difficult to obtain tomographic images of the associated sound-speed perturbations and flows in the interior before the first magnetic field elements appear on the surface. We continue investigating this problems by reducing the time intervals between the sound-speed images and flow maps to 2 hours. The helioseismology results are compared with the photospheric magnetograms and white-light images. In particular, we present results of the investigation of the emergence and development of large active region NOAA 10488 observed during the SOHO/MDI Dynamics campaign in October 2003, compare the results with helioseismic observations of other emerging active regions, and discuss the potential of local helioseismology for forecasting emergence and evolution of active regions.
Duvall Thomas L. Jr.
Kosovichev Alexander G.
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