ISSN:
1573-093X
Keywords:
Magnetohydrodynamics
;
Polarization
;
Solar Atmosphere
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract Solar magnetic elements and their dynamical interaction with the convective surface layers of the Sun are numerically simulated. Radiation transfer in the photosphere is taken into account. A simulation run over 18.5 minutes real time shows that the granular flow is capable of moving and bending a magnetic flux sheet (the magnetic element). At times it becomes inclined by up to 30° with respect to the vertical around the level τ 5000 = 1 and it moves horizontally with a maximal velocity of 4 km/s. Shock waves form outside and within the magnetic flux sheet. The latter cause a distinctive signature in a time series of synthetic Stokes V-profiles. Such shock events occur with a mean frequency of about 2.5 minutes. A time resolution of at least 10 seconds in Stokes V recordings is needed to reveal an individual shock event by observation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00146636
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