Abstract: | Gravitational waves (GWs) are expected to play a crucial role in the development of multimessenger astrophysics. The combination
of GW observations with other astrophysical triggers, such as from gamma-ray and X-ray satellites, optical/radio telescopes,
and neutrino detectors allows us to decipher science that would otherwise be inaccessible. In this paper, we provide a broad
review from the multimessenger perspective of the science reach offered by the third generation interferometric GW detectors
and by the Einstein Telescope (ET) in particular. We focus on cosmic transients, and base our estimates on the results obtained
by ET’s predecessors GEO, LIGO, and Virgo. |