Chromospheric Inversions of a Micro-Flaring Region

A. Reid, V. Henriques, M. Mathioudakis, J. G. Doyle, T. Ray

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Abstract

We use spectropolarimetric observations of the Ca II 8542 A line, taken from the Swedish 1-m Solar Telescope (SST), in an attempt to recover dynamic activity in a micro-flaring region near a sunspot via inversions. These inversions show localized mean temperature enhancements of 1000 K in the chromosphere and upper photosphere, along with co-spatial bi-directional Doppler shifting of 5 - 10 km s-1. This heating also extends along a nearby chromospheric fibril, co-spatial to 10 - 15 km s-1 down-flows. Strong magnetic flux cancellation is also apparent in one of the footpoints, concentrated in the chromosphere. This event more closely resembles that of an Ellerman Bomb (EB), though placed slightly higher in the atmosphere than is typically observed.
Original languageEnglish
JournalThe Astrophysical Journal
Volume845
Issue number2
DOIs
Publication statusPublished - 16 Aug 2017

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