Dependence of Velocity Distributions of Small-Scale Magnetic Fields Derived from Hinode/SOT G-band Filtergrams on the Temporal Resolution of the Used Data Sets

Author(s)

Dominik Utz, Arnold Hanslmeier, Richard Muller, Astrid Veronig, Jan Rybak, Herbert Muthsam

Abstract

The dynamics of isolated small-scale fields in terms of velocities of magnetic

bright points (MBPs) is addressed in this contribution. The empirically determined

linear relation between the observed width parameter for the Rayleigh velocity

distribution of MBPs versus the temporal cadence of the acquired data is studied by

simulations and a simple analytical model. The results of the model and the simulation

agree with the found relation for the observations. The conclusion we draw from the

model is that there may be no characteristic velocity for MBPs at all.

Organisation(s)

Department of Astrophysics, Department of Mathematics

External organisation(s)

Karl-Franzens-Universität Graz, Observatoire Midi-Pyrénées, Slovenian Academy of Sciences and Arts

Pages

55-58

No. of pages

4

Publication date

2012

Austrian Fields of Science 2012

1020 Computer Sciences

Portal url