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  Solar Ultraviolet Bursts

Young, P. R., Tian, H., Peter, H., Rutten, R. J., Nelson, C. J., Huang, Z., et al. (2018). Solar Ultraviolet Bursts. Space Science Reviews, 214: 120. doi:10.1007/s11214-018-0551-0.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-75CB-5 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-75CC-4
Genre: Journal Article

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 Creators:
Young, Peter R., Author
Tian, Hui, Author
Peter, Hardi1, Author              
Rutten, Robert J., Author
Nelson, Chris J., Author
Huang, Zhenghua, Author
Schmieder, Brigitte, Author
Vissers, Gregal J. M., Author
Toriumi, Shin, Author
van der Voort, Luc H. M. Rouppe, Author
Madjarska, Maria S.1, Author              
Danilovic, Sanja, Author
Berlicki, Arkadiusz, Author
Chitta, L. P.1, Author              
Cheung, Mark C. M., Author
Madsen, Chad, Author
Reardon, Kevin P., Author
Katsukawa, Yukio, Author
Heinzel, Petr, Author
Affiliations:
1Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              

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Free keywords: Sun: atmosphere Sun: activity Sun: UV radiation Sun: transition region
 Abstract: The term “ultraviolet (UV) burst” is introduced to describe small, intense, transient brightenings in ultraviolet images of solar active regions. We inventorize their properties and provide a definition based on image sequences in transition-region lines. Coronal signatures are rare, and most bursts are associated with small-scale, canceling opposite-polarity fields in the photosphere that occur in emerging flux regions, moving magnetic features in sunspot moats, and sunspot light bridges. We also compare UV bursts with similar transition-region phenomena found previously in solar ultraviolet spectrometry and with similar phenomena at optical wavelengths, in particular Ellerman bombs. Akin to the latter, UV bursts are probably small-scale magnetic reconnection events occurring in the low atmosphere, at photospheric and/or chromospheric heights. Their intense emission in lines with optically thin formation gives unique diagnostic opportunities for studying the physics of magnetic reconnection in the low solar atmosphere. This paper is a review report from an International Space Science Institute team that met in 2016–2017.

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Language(s): eng - English
 Dates: 2019-04-242018
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1007/s11214-018-0551-0
 Degree: -

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Title: Space Science Reviews
  Abbreviation : Space Sci Rev
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Dordrecht : Springer Netherlands
Pages: - Volume / Issue: 214 Sequence Number: 120 Start / End Page: - Identifier: ISSN: 0038-6308
CoNE: https://pure.mpg.de/cone/journals/resource/954925446718