Binary Neutron Star Signal Confusion in Third-Generation Ground Based Gravitational Wave Detectors

In current ground-based gravitational wave detectors, LIGO, Virgo, and KAGRA, published detections all lasted a finite amount of time. These transient signals appeared at a rate of a few per week in the third observing run with each signal appearing for seconds (BBH) to minutes (BNS) in the LIGO frequency band and are therefore unlikely to overlap. With third-generation (3G) ground-based detectors such as the Einstein Telescope (ET) and Cosmic Explorer (CE), the situation changes drastically with a BNS lasting hours to over a day in 3G detectors depending on low frequency sensitivity. Further, we expect to see a BNS merge at a cadence of about one every 30 seconds, resulting in significant overlap of many signals. In this talk, we explore the overlap of many BNS systems and what implications signal confusion may have for BNS parameter estimation.