INTEGRAL search for magnetar giant flares from the Virgo Cluster and in nearby galaxies with high star formation rate

Dominik P. Pacholski, Edoardo Arrigoni, Sandro Mereghetti +1

Giant flares from magnetars can reach, for a fraction of a second, luminosities greater than 10${}^{47}$ erg s${}^{-1}$ in the hard X-ray/soft $\gamma$-ray range. This makes them visible at…