Bibcode
Santamaria, I. C.; Khomenko, E.; Collados, M.; de Vicente, A.
Bibliographical reference
Astronomy and Astrophysics, Volume 590, id.L3, 5 pp.
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5
2016
Journal
Citations
11
Refereed citations
10
Description
We provide estimates of the wave energy reaching the solar chromosphere
and corona in a network-like magnetic field topology, including a
coronal null point. The waves are excited by an instantaneous strong
subphotospheric source and propagate through the subphotosphere,
photosphere, chromosphere, transition region, and corona with the plasma
beta and other atmospheric parameters varying by several orders of
magnitude. We compare two regimes of the wave propagation: a linear and
nonlinear regime. While the amount of energy reaching the corona is
similar in both regimes, this energy is transmitted at different
frequencies. In both cases the dominant periods of waves at each height
strongly depend on the local magnetic field topology, but this
distribution is only in accordance with observations in the nonlinear
case.
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