Small Scale Dynamics in an Emerging Flux Region

Details Small Scale Dynamics in an Emerging Flux Region Small Scale Dynamics in an Emerging Flux Region

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sp41b05s&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SP41B-05

Physics

7524 Magnetic Fields, 7529 Photosphere, 7594 Instruments And Techniques, 7599 General Or Miscellaneous

Scientific paper

Unusual Stokes spectra measured with the HAO/NSO Advanced Stokes Polarimeter ASP in a young active region with ongoing flux emergence indicate upward and downward moving shock fronts in the photosphere. The data cover the evolution of the region over 1.25 hours. The found flows are mainly located in magnetic fields only and occur on very small spatial scales. We present results from the analysis of individual Stokes profiles and from the inversion of the full Stokes vector in order to investigate the magnetic field topology and the dynamics that leads to the observed profiles. First results indicate that rising flux tubes with the onset of shocked down drafts can explain some of the observed spectra.

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