| Presentation Title: | High-resolution Spectropolarimetric Observation of a C-class Flare Observed by DKIST/ViSP |
| Author(s): | Rahul Yadav and Maria Kazachenko |
Abstract:
We present spectropolarimetric observations of a C4-class solar flare from the ViSP instrument at DKIST. This unprecedented high-cadence, resolution, and polarimetric-sensitive data provides a unique opportunity to quantify properties of small-scale photospheric magnetic fields before and during the flare. Specifically, we inferred the magnetic field vector in the photosphere from the Fe I 6302 line using Milne-Eddington inversion. From the inverted data, we find two pores of opposite polarities rotate before and during the flare. The observed anti-clockwise rotation of up to 60 degrees suggests a connection between the flare and photospheric dynamics. From the analysis of the Lorentz force in the photosphere, we conclude that the change in its horizontal component is most likely responsible for the observed pores rotation. Our findings are in agreement with previous findings for larger flares.