Dark cores in sunspot penumbral filaments

Sunspot umbrae—the dark central regions of the spots—are surrounded by brighter filamentary penumbrae, the existence of which remains largely inexplicable 1 . The penumbral filaments contain magnetic fields with varying inclinations 2 and are associated with flowing gas 3 , 4 , 5 , but discriminatin...

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Veröffentlicht in:	Nature (London) 2002-11, Vol.420 (6912), p.151-153
Hauptverfasser:	Scharmer, Göran B., Gudiksen, Boris V., Kiselman, Dan, Löfdahl, Mats G., van der Voort, Luc H. M. Rouppe
Format:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Cores Earth, ocean, space Exact sciences and technology Humanities and Social Sciences letter Magnetic fields multidisciplinary Physics Science Solar physics Solar system Sun Sunspots, faculae, plages
Online-Zugang:	Volltext
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