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Origin of solar spicules

Journal Article · · Astrophys. J.; (United States)
DOI:https://doi.org/10.1086/159993· OSTI ID:6865232
We consider the nonlinear evolution of vertical motions on intense solar magnetic flux tubes. It is shown that a quasi-impulsive source in the photosphere can excite a train of upward-propagating rebound shocks in the chromosphere. The rebound shock train is the nonlinear development of oscillations of the atmosphere at its natural frequency. The rebound shocks impinge on the transition region and thrust the underlying chromosphere upward. It is found that the rebound shock train leads naturally to structures which can be identified with the solar spicules.
Research Organization:
Space Science Center, Department of Physics University of New Hampshire
OSTI ID:
6865232
Journal Information:
Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 257:1; ISSN ASJOA
Country of Publication:
United States
Language:
English

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