“Probing the Magnetized Corona with Type II Solar Radio Bursts”
Ms. Puja Majee
National Centre for Radio Astrophysics, Tata Institute of Fundamental Research
Tuesday 7 July 2026, 13h CET
The Full Seminar Talk Available Here
Abstract:
Solar radio bursts are powerful diagnostics of coronal magnetic fields, plasma density structures, and turbulence. Among these, type II bursts are direct signatures of magnetohydrodynamic shock waves driven by coronal mass ejections (CMEs), and their polarization properties offer a rare window into the coronal magnetic field at the shock location — a quantity that is otherwise extremely difficult to measure remotely. In this talk, I will present results from a detailed spectro-polarimetric imaging study of a type II burst observed with the Murchison Widefield Array (MWA), covering both circular and linear polarization. These measurements provide direct constraints on the coronal magnetic field strength and topology sampled by the propagating shock. I will also present a curious case study of an atypical type II burst observed with LOFAR.