Research Interest and Projects
The theory that describes gravitational interactions in astrophysics and cosmology is General Relativity. The gravitational field is interpreted geometrically and matter interacts dynamically with space-time. The accurate theoretical study of extreme astrophysical objects (such as pulsar, x-rays sources, neutron stars, black holes, etc.) requires the use of Einstein's equation coupled to equations for both, matter and the electromagnetic fields.
This is a formidable problem both, theoretically and numerically. At present the only viable approach is by means of computer simulations. This approach requires appropriate architectures and dedicated numerical codes to be performed in massively parallel supercomputers.
In the last years our group at DiFeST has developed the relevant expertise and we investigate compact astrophysical objects which are the potential sources of gravitational waves to be detected by ground-based interferometers, such as LIGO/VIRGO.
More in detail. We are working on the following subjects:
- Binary neutron star (BNS) mergers using public codes.
- Many orbits simulations of BNS mergers using different EOS.
- Modeling Mergers of Known Galactic Systems of Binary Neutron Star.
- Dynamical bar-mode instability in rapidly rotating neutron stars.
- Magnetic evolution and instabilities in differentially rotating neutron stars.