My research interests include the detection and the science of transient events, along with 'multi-messenger' studies to search for electromagnetic counterparts to gravitational wave signals.
Transient sources appear in the sky, evolve, and finally fade away at all time-scales. Supernovae, for example, become bright (sometimes enough to rival the brightness of their own host galaxy) and then disappear within a few weeks, or a few months. However there are transient events that have very short durations that are relatively unexplored. For example, high-energy flashes called 'supernova shock breakouts' precede their optical emission (lasting only a few seconds), and mergers of neutron stars can produce explosions called 'kilonovae' (lasting only a few hours). Transients are therefore discovered over a wide range of time-scales and studied over the whole electromagnetic spectrum and beyond, as some catastrophic events emit a huge amount of energy in the form of gravitational waves. Gamma-ray bursts peak in the gamma rays, but their afterglow can be detected in the X-rays, ultraviolet, optical and at longer wavelengths, with some of them predicted to be gravitational waves sources. Finally, a new class of transients has been recently discovered in the radio called 'fast radio bursts'. These bursts last only a few milliseconds, less than a blink of your eye, but can be seen from across the Universe. Fast radio bursts, along with fast transients at all wavelengths, represent a challenging and unexplored world that we are now starting to unveil.
During my PhD I explore the fast (seconds to hours time-scale) dynamic Universe with coordinated, simultaneous observations in time-domain with radio, optical, UV, X-ray and gamma ray telescopes in the framework of the 'Deeper Wider Faster' project.
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