Low-lying magnetic loops in the solar internetwork

Bibcode
2007A&A...469L..39M
DOI
10.1051/0004-6361:20077505
Martínez González, M. J.; Collados, M.; Ruiz Cobo, B.; Solanki, S. K.
Bibliographical reference

Astronomy and Astrophysics, Volume 469, Issue 3, July III 2007, pp.L39-L42

Advertised on:
7
2007
Journal
Astronomy and Astrophysics
Number of authors
4
IAC number of authors
3
Citations
70
Refereed citations
61
Description
Aims:We study the structure of the magnetic field vector in the internetwork and search for the presence of small-scale loops. Methods: We invert 1.56 μm spectropolarimetric observations of internetwork regions at disc centre by applying the SIR code. This allows us to recover the atmospheric parameters that play a role in the formation of these spectral lines. We are mainly interested in the structure of the magnetic field vector. Results: We find that many opposite polarity elements of the internetwork are connected by short (2-6´´), low-lying (photospheric) loops. These loops connect at least the 10-20% of the internetwork flux visible in our data. Also we have some evidence that points towards a dynamic scenario that can be produced by the emergence of internetwork magnetic flux.
Type
Refereed
Magnetic fields

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