Observational Analysis of Photospheric Magnetic Field Restructuring During Energetic Solar Flares

Details Observational Analysis of Photospheric Magnetic Field Restructuring During Energetic Solar Flares Observational Analysis of Photospheric Magnetic Field Restructuring During Energetic Solar Flares

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh13b1944a&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SH13B-1944

Astronomy and Astrophysics

Astrophysics

[7519] Solar Physics, Astrophysics, And Astronomy / Flares, [7524] Solar Physics, Astrophysics, And Astronomy / Magnetic Fields, [7529] Solar Physics, Astrophysics, And Astronomy / Photosphere

Scientific paper

The magnetic field has proven to be the main driver in the behavior, dynamics and evolution of several solar atmospheric phenomena including sunspots, plages, faculae, CME's and flares. Observational evidence of photospheric magnetic field restructuring during energetic flares have shown an enhancement of the transversal field component suggesting an apparent relation between this process with the generation of ``sunquakes'', expanding ripples on the solar photosphere as a result of the momentum-energy transfer into the solar photosphere and subphotosphere. In this work we present a doppler and magnetic observational study of some recent energetic flaring events (X and M type of the 24th solar cycle) trying to find possible acoustic signatures and make a characterization of the photospheric magnetic field evolution during those flares, being this the observational basis of a future numerical modeling of the field restructuring during this phenomenon.

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