Coronal seismology: Seismology of the corona of the Sun
Nakariakov, V. M. and E. Verwichte, Coronal seismology: Seismology of the corona of the Sun, Astronomy and Geophysics, 45, 040000-4 (2004) (ADS)
(click on the image for a larger version)
Coronal seismology might seem to be fairly far removed, as an
academic discipline, from flare physics. But it turns out that
some of the best waves are excited by
flares.
The ones that propagate
in the solar corona have a strong association with type II bursts
and the powerful flares associated with them. This cartoon shows
how a "line-tied" loop - or more generally, a whole magnetic structure
of which the loop is a part - can jiggle in a kink mode as the
result of a global coronal wave.
The Archive contains
one
or two
other possibilities as well.
This gaudy and simplistic cartoon betrays its origin in a semi-popular
article but is physically OK, except for the fake diffraction pattern
depicted at the epicenter.
Coronal seismology might seem to be fairly far removed, as an academic discipline, from flare physics. But it turns out that some of the best waves are excited by flares. The ones that propagate in the solar corona have a strong association with type II bursts and the powerful flares associated with them. This cartoon shows how a "line-tied" loop - or more generally, a whole magnetic structure of which the loop is a part - can jiggle in a kink mode as the result of a global coronal wave. The Archive contains one or two other possibilities as well.
This gaudy and simplistic cartoon betrays its origin in a semi-popular article but is physically OK, except for the fake diffraction pattern depicted at the epicenter.