Our research is about modeling the dynamics of compact objects, like black holes and neutron stars, in binary systems using Einstein's general relativity. We develop computational methods for solving Einstein's equations and for simulating astrophysical events on the largest supercomputers in the World. We model gravitational waves and their electromagnetic counterparts, and work with the LIGO-Virgo-Kagra scientific collaboration to support gravitational-wave astronomy observations.
Neutron stars binary mergers are among the main targets for ground-based gravitational-wave interferometers like Advanced LIGO and Virgo. Gravitational-waves from these sources contain unique information that will help answering many open questions in fundamental physics, astrophysics and cosmology. The data analysis of the signals, however, requires a priori a detailed understanding of the source dynamics and waveform templates.
The BinGraSp project, funded by the European Research Council (ERC-StG-2015) aims at developing precise theoretical models of the gravitational spectrum of neutron star binaries. We work on new methods for numerical relativity simulations of compact binaries, and combine the simulations' data with the most advanced analytical methods for the solution of the general relativistic relativistic two-body problem.
GW170817 marked the beginning of multimessenger astronomy with compact binaries. The joint analysis of multimessenger data from upcoming observations is expected to boost the information on the source but its full realization remains a challenging problem.
The MeMi project, funded by the Deutsche Forschungsgemeinschaft in 2020, aims at developing methods for Bayesian inference on joint observations of kilonovae and gravitational waves. We work on establishing an open-source framework to coherently analyse the observational data, also including numerical-relativity–informed models of kilonova light curves.