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- SH13F-2160: Magnetic Fingerprints of Chromospheric Jets and Their Role in Flare Onset: High-Cadence Spectropolarimetry from DST
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Board 2160‚ Hall EFG (Poster Hall)NOLA CC
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Juie Shetye, New Mexico State University Main Campus (First Author, Presenting Author)
What triggers solar flares? These powerful bursts of energy can disrupt satellites and communications on Earth, yet their onset remains hard to predict. Our study zooms in on small magnetic structures and fast jets in the Sun’s lower atmosphere using high-speed spectropolarimetric observations from the Dunn Solar Telescope. By measuring magnetic fields and plasma flows at sub-arcsecond resolution every 30 seconds, we uncover “magnetic fingerprints” that appear just before jets and flares. These include twisting fields, flux cancellation, and rapid motions that signal the system is unstable. We are also building a public archive of these high-cadence datasets so researchers worldwide can explore the link between tiny magnetic changes and large solar explosions. Understanding these small-scale drivers is a key step toward better models of solar activity and, ultimately, more accurate space weather predictions.
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