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GR: Fachverband Gravitation und Relativitätstheorie
GR 9: Gravitational Waves
GR 9.5: Talk
Wednesday, March 23, 2022, 17:35–17:55, GR-H2
Realistic observing scenarios for the next decade of early warning detection of binary neutron stars — Ryan Magee1 and •Ssohrab Borhanian2 — 1California Institute of Technology, Pasadena, USA — 2Friedrich-Schiller-Universität Jena, Jena, Germany
We describe realistic observing scenarios for early warning detection of binary neutron star mergers with the current generation of ground-based gravitational-wave detectors as these approach design sensitivity. Using Fisher analysis, we compute both the number of detections and the sky localizations to expect from future detector network configurations. We estimate that the Advanced LIGO and Advanced Virgo facilities will detect two signals before merger in their fourth observing run, while the addition of the Kagra and LIGO-India detectors, at design sensitivites, should increase these numbers to the order of 10 early warning detections per year in the fifth observing run. More than 70% of these events will be localized to less than 100 deg2, with one achieving a localization of ∼20 deg2. Given uncertainties in sensitivities, participating detectors, and duty cycles, we include a data release that allows for full generalizability of future detector networks so electromagnetic observers can tailor preparations towards their preferred models.