Active region fine structure observed at 0.08 arcsec resolution

Schlichenmaier, R.; von der Lühe, O.; Hoch, S.; Soltau, D.; Berkefeld, T.; Schmidt, D.; Schmidt, W.; Denker, C.; Balthasar, H.; Hofmann, A.; Strassmeier, K.G.; Staude, J.; Feller, A.; Lagg, A.; Solanki, S.K.; Collados Vera, M.; Sigwarth, M.; Volkmer, R.; Waldmann, T.A.; Kneer, F.; Nicklas, H.; Sobotka, Michal

doi:https://dx.doi.org/10.1051/0004-6361/201628561

Number of the records: 1

Active region fine structure observed at 0.08 arcsec resolution

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SYSNO ASEP	0470625
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Active region fine structure observed at 0.08 arcsec resolution
Author(s)	Schlichenmaier, R. (DE) von der Lühe, O. (DE) Hoch, S. (DE) Soltau, D. (DE) Berkefeld, T. (DE) Schmidt, D. (US) Schmidt, W. (DE) Denker, C. (DE) Balthasar, H. (DE) Hofmann, A. (DE) Strassmeier, K.G. (DE) Staude, J. (DE) Feller, A. (DE) Lagg, A. (DE) Solanki, S.K. (DE) Collados Vera, M. (ES) Sigwarth, M. (DE) Volkmer, R. (DE) Waldmann, T.A. (DE) Kneer, F. (DE) Nicklas, H. (DE) Sobotka, Michal (ASU-R)_{RID, ORCID}
Number of authors	22
Source Title	Astronomy & Astrophysics. - : EDP Sciences - ISSN 0004-6361 Roč. 596, December (2016), A7/1-A7/8
Number of pages	8 s.
Publication form	Online - E
Language	eng - English
Country	FR - France
Keywords	Sun ; activity ; sunspots
Subject RIV	BN - Astronomy, Celestial Mechanics, Astrophysics
OECD category	Astronomy (including astrophysics,space science)
Institutional support	ASU-R - RVO:67985815
UT WOS	000390797900049
EID SCOPUS	85003967060
DOI	https://doi.org/10.1051/0004-6361/201628561
Annotation	We characterise the appearance of light bridges and other fine-structure details and elaborate on their magneto-convective nature. We find branched dark lanes extending along thin (approximate to 1") light bridges in sunspots at various heliocentric angles. In thick (greater than or similar to 2") light bridges the branches are disconnected from the central lane and have a Y shape with a bright grain toward the umbra. The images reveal that light bridges exist on varying intensity levels and that their small-scale features evolve on timescales of minutes. Faint light bridges show dark lanes outlined by the surrounding bright features. Dark lanes are very common and are also found in the boundary of pores. They have a characteristic width of 0.1" or smaller. Intergranular dark lanes of that width are seen in active region granulation.
Workplace	Astronomical Institute
Contact	Anežka Melichárková, bibl@asu.cas.cz, Tel.: 323 620 326
Year of Publishing	2017

Number of the records: 1