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| Titel |
Modeling Jets in the Corona and Solar Wind |
| VerfasserIn |
Tibor Torok, Roberto Lionello, Viacheslav S. Titov, James E. Leake, Zoran Mikic, Jon A. Linker, Mark G. Linton |
| Konferenz |
EGU General Assembly 2016
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250123441
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| Publikation (Nr.) |
 EGU/EGU2016-2692.pdf |
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| Zusammenfassung |
| Coronal jets are transient, collimated eruptions that occur in
regions of open or semi-open magnetic fields in the solar corona.
Our understanding of these events has significantly improved in
recent years, owing to improved observational capabilities and
numerical simulations. Yet, several important questions concerning
coronal jets remain largely unanswered. For example: What exactly
are the physical mechanisms that heat and accelerate the plasma?
And to what extent do jets contribute to the heating of the corona
and in providing mass and energy to the fast solar wind?
Here we present a "new generation" of coronal-jet simulations that
will allow us to address such questions in more detail than before.
In contrast to previous simulations, our code models the large-scale
corona in a spherical domain, uses an advanced description of the
energy transfer in the corona ("thermodynamic MHD"), and includes
the solar wind. As a first application, we consider a purely radial
coronal magnetic field and a simple coronal heating function that
decreases exponentially with height above the surface. We produce
so-called standard and blowout jets by continuously driving the
system at the lower boundary with data extracted from flux-emergence
simulations. We discuss the formation, dynamics, and evolution of
the jets, as well as their contribution to coronal heating and the
solar wind. |
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