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Excitation of magneto-acoustic waves in network magnetic elements

Published online by Cambridge University Press:  26 August 2011

Yoshiaki Kato ,
Oskar Steiner ,
Matthias Steffen  and
Yoshinori Suematsu
Yoshiaki Kato
Affiliation:
Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210, Japan email: kato.yoshiaki@isas.jaxa.jp
Oskar Steiner
Affiliation:
Kiepenheuer-Institut für Sonnenphysik Schöneckstrasse 6, D-79104 Freiburg, Germany
Matthias Steffen
Affiliation:
Astrophysikalisches Institut Potsdam An der Sternwarte 16, D-14482, Potsdam, Germany
Yoshinori Suematsu
Affiliation:
Hinode Science Center, National Astronomical Observatory of Japan 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
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Abstract

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From radiation magnetohydrodynamic (RMHD) simulations we track the temporal evolution of a vertical magnetic flux sheet embedded in a two-dimensional non-stationary atmosphere that reaches all the way from the upper convection zone to the low chromosphere. Examining its temporal behavior near the interface between the convection zone and the photosphere, we describe the excitation of propagating longitudinal waves within the magnetic element as a result of convective motion in its surroundings.

Keywords

Sun: photospheresun: chromospheresun: oscillationsSuun: magnetic fieldsMHD
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S273: The Physics of Sun and Star Spots , August 2010 , pp. 442 - 445
Copyright
Copyright © International Astronomical Union 2011

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