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  Onset of Turbulent Fast Magnetic Reconnection Observed in the Solar Atmosphere

Chitta, L. P., & Lazarian, A. (2020). Onset of Turbulent Fast Magnetic Reconnection Observed in the Solar Atmosphere. Astrophysical Journal, Letters, 890(1): L2. doi:10.3847/2041-8213/ab6f0a.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0006-F541-C Version Permalink: http://hdl.handle.net/21.11116/0000-0006-F542-B
Genre: Journal Article

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 Creators:
Chitta, L. P.1, Author              
Lazarian, A., Author
Affiliations:
1Department Sun and Heliosphere, Max Planck Institute for Solar System Research, Max Planck Society, ou_1832289              

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 Abstract: Fast magnetic reconnection powers explosive events throughout the universe, from gamma-ray bursts to solar flares. Despite its importance, the onset of astrophysical fast reconnection is the subject of intense debate and remains an open question in plasma physics. Here we report high-cadence observations of two reconnection-driven solar microflares obtained by the Interface Region Imaging Spectrograph that show persistent turbulent flows preceding flaring. The speeds of these flows are comparable to the local sound speed initially, suggesting the onset of fast reconnection in a highly turbulent plasma environment. Our results are in close quantitative agreement with the theory of turbulence-driven reconnection as well as with numerical simulations in which fast magnetic reconnection is induced by turbulence.

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Language(s): eng - English
 Dates: 2020
 Publication Status: Published in print
 Pages: -
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 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.3847/2041-8213/ab6f0a
 Degree: -

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Title: Astrophysical Journal, Letters
  Other : ApJL
Source Genre: Journal
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Publ. Info: Bristol, UK : Institute of Physics Publishing (IOP)
Pages: - Volume / Issue: 890 (1) Sequence Number: L2 Start / End Page: - Identifier: ISSN: 0004-637X
CoNE: https://pure.mpg.de/cone/journals/resource/954922828215_1