Fine Scale Magnetic Fields in and around a Decaying Active Region

Details Fine Scale Magnetic Fields in and around a Decaying Active Region Fine Scale Magnetic Fields in and around a Decaying Active Region

2008-01-18

arxiv.org/abs/0801.2820v1

Astronomy and Astrophysics

Astrophysics

Accepted BASI 2007

Scientific paper

High spatial resolution spectro-polarimetric observation of a decaying spot was observed with the Diffraction Limited Spectro-Polarimeter. The spatial resolution achieved was close to the diffraction limit (0."18) of the Dunn Solar Telescope. The fine scales present inside the decaying active region as well as surrounding areas were studied. Two interesting phenomenon observed are: (i) Canopy like structures are likely to be present in the umbral dots as well as in the light bridges providing evidence for field-free intrusion, (ii) There are opposite polarity loops present outside of the spot and some of them connects to the main spot and the surrounding magnetic features.

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