Anticorrelation between Moving Magnetic Features and Coronal Loop Formation

Details Anticorrelation between Moving Magnetic Features and Coronal Loop Formation Anticorrelation between Moving Magnetic Features and Coronal Loop Formation

Feb 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007apj...656l..45r&link_type=abstract

The Astrophysical Journal, Volume 656, Issue 1, pp. L45-L48.

Astronomy and Astrophysics

Astronomy

2

Sun: Corona, Sun: Magnetic Fields, Sun: Photosphere

Scientific paper

We study a possible connection of moving magnetic features (MMFs) and the overlying atmosphere using several sets of multiwavelength observations of sunspot areas from the photosphere to the corona. We find that as a collective phenomenon, very intense MMF formation anticorrelates with the presence of large-scale ``stable'' coronal loops: such loops are rooted at the side of sunspots with no or few MMFs rather than at the side of the penumbra/moat highly populated by MMFs. Conjectures to help understand the observed correlation between the preferable site of coronal loops and the deficiency of MMFs are discussed.

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