Please use this identifier to cite or link to this item: http://hdl.handle.net/2248/6917
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dc.contributor.authorFelipe, T-
dc.contributor.authorCollados, M-
dc.contributor.authorKhomenko, E-
dc.contributor.authorRajaguru, S. P-
dc.contributor.authorFranz, M-
dc.contributor.authorKuckein, C-
dc.contributor.authorAsensio Ramos, A-
dc.date.accessioned2020-11-12T13:51:55Z-
dc.date.available2020-11-12T13:51:55Z-
dc.date.issued2017-12-
dc.identifier.citationAstronomy & Astrophysics, Vol. 608, A97en_US
dc.identifier.issn0004-6361-
dc.identifier.urihttp://prints.iiap.res.in/handle/2248/6917-
dc.descriptionRestricted Access © ESO https://doi.org/10.1051/0004-6361/201731374en_US
dc.description.abstractAims. We investigate the properties of a sunspot light bridge, focusing on the changes produced by the impact of a plasma blob ejected from a C-class flare. Methods. We observed a sunspot in active region NOAA 12544 using spectropolarimetric raster maps of the four Fe i lines around 15 655 Å with the GREGOR Infrared Spectrograph, narrow-band intensity images sampling the Fe i 6173 Å line with the GREGOR Fabry-Pérot Interferometer, and intensity broad-band images in G -band and Ca ii H -band with the High-resolution Fast Imager. All these instruments are located at the GREGOR telescope at the Observatorio del Teide, Tenerife, Spain. The data cover the time before, during, and after the flare event. The analysis is complemented with Atmospheric Imaging Assembly and Helioseismic and Magnetic Imager data from the Solar Dynamics Observatory. The physical parameters of the atmosphere at di ff erents heights were inferred using spectral-line inversion techniques. Results. We identify photospheric and chromospheric brightenings, heating events, and changes in the Stokes profiles associated with the flare eruption and the subsequent arrival of the plasma blob to the light bridge, after traveling along an active region loop. Conclusions. The measurements suggest that these phenomena are the result of reconnection events driven by the interaction of the plasma blob with the magnetic field topology of the light bridge.en_US
dc.language.isoenen_US
dc.publisherEDP Sciencesen_US
dc.subjectMethods: observationalen_US
dc.subjectSun: flaresen_US
dc.subjectSun: photosphereen_US
dc.subjectSun: magnetic fieldsen_US
dc.subjectsun: activityen_US
dc.subjectsunspotsen_US
dc.titleSignatures of the Impact of Flare-Ejected Plasma on the Photosphere of a Sunspot Light Bridgeen_US
dc.typeArticleen_US
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