Abstract Details
| Name: Anshu Kumari Affiliation: Physical Research Laboratory Conference ID: ASI2025_624 Title : Spatial Fragmentation in Solar Flares Investigated through Radio Emission Authors and Co-Authors : Anshu Kumari 1, Anisha Kulhari 1, Bireddy Ramya 1, Ankala Raja Bayanna 1, Shibu K Mathew 1 Abstract Type : Poster Abstract Category : Sun, Solar System, Exoplanets, and Astrobiology Abstract : Type III solar radio bursts are fast frequency-drifting emission features, typically from higher to lower frequencies at the rates up to 100 MHz per second. These bursts, spanning a broad frequency range from 10 kHz to 1 GHz, are commonly associated with active regions and solar flares, and they are the most frequently observed solar radio phenomena. Type III bursts signify beams of energetic electrons propagating through the solar corona along open magnetic field lines. In this study, we analyzed a series of co-temporal type III radio bursts and Hα flare events using a combination of datasets from the Nançay Radioheliograph (NRH, in imaging mode); and e-CALLISTO (observing in Sun-as-a-star mode), the Global Oscillation Network Group (GONG), and the Multi-Application Solar Telescope (MAST) at the Udaipur Solar Observatory (USO) . We used NRH’s high temporal resolution imaging to locate the spatial centroids of Type III radio burst sources and correlated these with MAST's Hα observation. We compared radio burst locations with the corresponding active regions where flares originated. This simultaneous tracking of active region and corresponding radio emission in two different layers of the solar atmosphere, the middle chromosphere (Hα) and the middle corona (radio), was used to investigate the spatial fragmentation of energy release during solar flares. |