Gravity seminar : Tim Dietrich, University of Potsdam

Modeling and Interpreting the Multimessenger Picture of Neutron Star Mergers

The multimessenger detection of gravitational waves and electromagnetic signals from binary neutron star mergers provides profound insights into fundamental physics such as new constraints on the equation of state of neutron stars and the Hubble constant. However, the correct interpretation of multimessenger data, including gravitational waves and electromagnetic counterparts, requires accurate theoretical predictions that can be cross-correlated with observations. These models can be constructed by combining ab initio numerical-relativity simulations with derived analytical knowledge. In addition, an efficient Bayesian framework for multimessenger data analysis is indispensable for extracting meaningful information from observational data. We will discuss how numerical-relativity simulations and multimessenger data analysis work hand in hand to provide valuable insights into neutron star mergers and fundamental physics principles.