Speaker
Description
Fast Radio Bursts (FRBs) are a recently discovered class of GHz-band astrophysical transients with an unknown origin. Exploring their potential gamma-ray and gravitational wave (GW) counterparts is crucial for constraining their emission mechanisms. We present a search for GW signals from FRBs, focusing on the Galactic magnetar SGR 1935+2154, using the GEO600 detector, setting the strictest upper limits on concurrent GW emission from FRBs to date. For gamma-ray searches, we analyzed 13 years of Fermi-LAT data covering over 1000 FRBs—the largest sample ever studied. This represents the most extensive and sensitive search for gamma-ray emission from FRBs, setting the most stringent upper limits on short- and long-timescale emission, cumulative signals, and individual photon searches. These results provide critical constraints on the multi-messenger nature of FRBs and their underlying physics.
