Signatures of Cross-sectional Width Modulation in Solar Spicules due to Field-aligned Flows

We report the first observational detection of frequency modulation in the cross-sectional width of spicule structures due to field-aligned plasma flows. Cross-sectional width variations were estimated for the least superimposed off-limb spicules observed in high-resolution H imaging spectroscopy da...

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Veröffentlicht in:	The Astrophysical journal 2020-12, Vol.905 (1), p.72
Hauptverfasser:	Mackenzie Dover, Fionnlagh, Sharma, Rahul, Korsós, Marianna B., Erdélyi, Robertus
Format:	Artikel
Sprache:	eng
Schlagworte:	Astrophysics Atmospheric models Cross-sections Frequency modulation H alpha line Image resolution Periodicities Solar atmosphere Solar chromosphere Solar spicules Spectral analysis Spectroscopy Spectrum analysis Spicules The Sun Two dimensional models Waveguides
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