Weakly damped Alfven waves as drivers of solar chromospheric spicules
Article Abstract:
The shape, speed and density of solar spicules suggests that they are thrown from the solar chromosphere into the corona by some force opposing gravity but with no intermediary pressure build-up. Numerous suggestions have been made to explain this from shock-wave heating through diamagnetic squeezing, but these have proven inadequate even in combination. Transfer of momentum from upward-moving Alfven waves and the fact that collisional coupling of the ionized plasma with neutral gas is insufficient to dampen the waves explain the phenomenon.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1992
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Filamentary structure on the Sun from the magnetic Rayleigh-Taylor instability
Article Abstract:
Magnetic flux emerges from the solar surface as dark filaments connecting small sunspots with opposite polarities. The three-dimensional simulations of emerging flux showing that the filamentary structure arises from the magnetic Rayleigh-Taylor instability are reported.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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Solar chromospheric spicules from the leakage of photospheric oscillations and flows
Article Abstract:
Spicules that are dynamic jets propagate upwards into the low corona due to quasi-periodic shocks. They lead to intensity oscillations with the same properties as longitudinal oscillations.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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