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January 7, 2026

Infrared spectropolarimetry of a C-class solar flare footpoint plasma. I. Spectral features and forward modelling

Z. Vashalomidze C. Quintero Noda T.V. Zaqarashvili M. Benko D. Kuridze P. Gömöry J. Rybák S. Lomineishvili M. Collados C. Denker M. Verma C. Kuckein A. Asensio Ramos

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Key Points

This research investigates the interaction between the photosphere and chromosphere during a C-class solar flare.
High-spatial-resolution spectropolarimetric observations using the Gregor Infrared Spectrograph (GRIS).
Analysis of spectral lines during the decay phase of a C-class flare at active region NOAA 13363.
Simultaneous imaging in the H line and TiO band with HiFI+.
Identified red- and blueshifted spectral line components with Doppler velocities up to ∼90 km s-1.
Flare-related emission did not affect the lower photospheric conditions or nearby plage.
Spectral line emission reflects the complex response of flaring chromosphere influenced by various factors.

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Implication

Observations reveal polarimetric signals and blueshifted components during a solar flare in plasma dynamics.

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Cite This Study

Vashalomidze et al. (2026) studied this question.

synapsesocial.com/papers/6966f33b13bf7a6f02c012db https://doi.org/10.1051/0004-6361/202557526/pdf

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