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astro-ph.HE2025
Long-term monitoring of repeating FRB 20220912A with the uGMRT at low radio frequencies
Ajay Kumar, Yogesh Maan, Banshi Lal +4
Some repeating FRBs exhibit occasional extreme repetition rates, but very few show a sustained high activity level. One such hyperactive repeater is FRB 20220912A, which was discov…
astro-ph.SR2025
On Using Gradient Dynamic Spectra (GraDS) to Study Type-II Solar Radio Bursts
Puja Majee, Devojyoti Kansabanik, Divya Oberoi
Solar type-II radio bursts are coherent plasma emissions arising from magnetohydrodynamic shocks produced by either coronal mass ejections (CMEs) or flares. Type-II bursts sometime…