Strong gravitational lensing of gravitational waves from double compact binaries - perspectives for the Einstein Telescope

Understand

Gravitational wave (GW) experiments are entering their advanced stage which should soon open a new observational window on the Universe.

• Looking into this future, the Einstein Telescope (ET) was designed to have a fantastic sensitivity improving significantly over the advanced GW detectors.
• One of the most important astrophysical GW sources supposed to be detected by the ET in large numbers are double compact objects (DCO) and some of such events should be gravitationally lensed by intervening galaxies.
• We explore the prospects of observing gravitationally lensed inspiral DCO events in the ET.