Magneto-acoustic wave propagation in the solar atmosphere: vertical magnetic field, disturbance $\delta B$
Natural Sciences (Astrophysics and Astrononmy)
2508 views
Date of upload:
09.03.2015
Co-author:
M. Roth, O. Steiner
Caption:
Magnetic field perturbations, $\delta B/B_0$, for
different time steps and for the scenario of a vertical magnetic field. The
magneto-acoustic wave propagates from the source (piston) located at (x; z) =
(1000; -750) km. The horizontal line shows the equipartition level, where the sound speed equals the Alfven speed, $c_\mathrm{s}=c_\mathrm{A}$. The vertical lines represent magnetic field lines.
Magneto-acoustic wave propagation in the solar atmosphere: vertical magnetic field, disturbance $\delta B$
Natural Sciences (Astrophysics and Astrononmy)
1891 views
Date of upload:
13.03.2015
Co-author:
M. Roth, O. Steiner
Caption:
Magnetic field perturbations, $\delta B/B_0$, for
di fferent time steps and for the scenario of a vertical magnetic fi eld. The
magneto-acoustic wave propagates from the source (piston) located at (x; z) =
(1000;-750) km. The horizontal line shows the equipartition level, where the sound speed equals the Alfven speed, $c_\mathrm{s}=c_\mathrm{A}$. The vertical lines represent magnetic field lines.
Magneto-acoustic wave propagation in the solar atmosphere: tilted magnetic field ($\theta=30^°$)
Natural Sciences (Astrophysics and Astrononmy)
1775 views
Date of upload:
13.03.2015
Co-author:
M. Roth, O. Steiner
Caption:
Evolution of the velocity perturbation scaled with the square root of the density,
$ \rho^{1/2} \delta|v|$, for the scenario of a tilted magnetic field with $\theta$= 30$^°$. The horizontal
line shows the equipartition level, where the sound speed equals the Alfven
speed, $c_\mathrm{s} = c_\mathrm{A}$. The tilted lines represent magnetic fi eld lines.
Magneto-acoustic wave propagation in the solar atmosphere: vertical magnetic field ($\theta=30^°$), disturbance $\delta B$
Natural Sciences (Astrophysics and Astrononmy)
1949 views
Date of upload:
13.03.2015
Co-author:
M. Roth, O. Steiner
Caption:
Magnetic field perturbations, $\delta B/B_0$, for di fferent time steps and for the scenario of a vertical magnetic fi eld. The magneto-acoustic wave propagates from the source (piston) located at (x; z) = (1000;-750) km. The horizontal line shows the equipartition level, where the sound speed equals the Alfven speed, $c_\mathrm{s}=c_\mathrm{A}$. The vertical lines represent magnetic field lines.
