Slipping reconnection in a solar flare observed in high resolution with the GREGOR solar telescope

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F16%3A00470327" target="_blank" >RIV/67985815:_____/16:00470327 - isvavai.cz</a>
Alternative codes found
RIV/67985815:_____/16:00488878
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201527966" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201527966</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201527966" target="_blank" >10.1051/0004-6361/201527966</a>

Result language
angličtina
Original language name
Slipping reconnection in a solar flare observed in high resolution with the GREGOR solar telescope
Original language description
A small flare ribbon above a sunspot umbra in active region 12205 was observed on November 7, 2014, at 12:00 UT in the blue imaging channel of the 1.5 m GREGOR telescope, using a 1 angstrom Ca II H interference filter. Context observations from the Atmospheric Imaging Assembly (AIA) onboard the Solar Dynamics Observatory (SDO), the Solar Optical Telescope (SOT) onboard Hinode, and the Interface Region Imaging Spectrograph (IRIS) show that this ribbon is part of a larger one that extends through the neighboring positive polarities and also participates in several other flares within the active region. We reconstructed a time series of 140 s of Ca II H images by means of the multiframe blind deconvolution method, which resulted in spatial and temporal resolutions of 0.1 '' and 1 s. Light curves and horizontal velocities of small-scale bright knots in the observed flare ribbon were measured. Some knots are stationary, but three move along the ribbon with speeds of 7-11 km s(-1). Two of them move in the opposite direction and exhibit highly correlated intensity changes, which provides evidence of a slipping reconnection at small spatial scales.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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