000007761 001__ 7761
000007761 005__ 20260108103240.0
000007761 037__ $$aPOSTER-2026-0015
000007761 100__ $$aPatel, Ritesh  
000007761 245__ $$aUnprecedented Fine Structures in Coronal Flare Ribbons Revealed by Solar Orbiter’s High-Resolution Imager
000007761 260__ $$c2025
000007761 269__ $$c2025-12-19
000007761 500__ $$aSH52B-06
000007761 520__ $$aWe present unprecedented observations of fine substructures within a flare ribbon in the solar corona. During its perihelion on September 30, 2024, Solar Orbiter observed a M7.7-class flare using its suite of instruments from a distance of 0.29 AU. We analyze the physical properties of small-scale downflowing features embedded within the flare ribbons. These structures have widths on the order of a few hundred kilometers, making them among the smallest features identified during magnetic reconnection in the solar corona. The downflows exhibit velocities ranging from 30 to 100 km/s, while the corresponding flare ribbon—along with the embedded substructures—moved laterally at approximately 5.3 km/s, increasing more than threefold as the flare progressed. This acceleration coincided with enhanced X-ray emission observed by STIX. Notably, the presence of relatively cool plasma (~1 MK) within the downflowing features during the flare’s rise phase provides new insights into the complex dynamics of magnetic reconnection in the solar atmosphere.
000007761 594__ $$aSTCE
000007761 6531_ $$aSolar Orbiter 
000007761 6531_ $$aEUI
000007761 6531_ $$aflares
000007761 700__ $$aMolnar, Momchil  
000007761 700__ $$aSingh, Prakhar  
000007761 700__ $$aFrench, Ryan  
000007761 700__ $$aPant, Vaibhav  
000007761 700__ $$aSeaton, Daniel B  
000007761 700__ $$aCaspi, Amir  
000007761 700__ $$aChitta, Lakshmi Pradeep  
000007761 700__ $$aHassler, Don 
000007761 700__ $$aBerghmans, David 
000007761 773__ $$tAGU25 Annual Meeting, New Orleans LA
000007761 8560_ $$fdavid.berghmans@ksb-orb.be
000007761 85642 $$ahttps://agu.confex.com/agu/agu25/meetingapp.cgi/Paper/1963373
000007761 980__ $$aCPOSTER