Nicolas Sanchis-Gual, the only member of the LIGO-Virgo-Kagra collaboration working in Portugal, officially joined Gr@v and our research unit CIDMA. After his Ph.D. from the University of Valencia, Nico worked as a postdoctoral researcher at CENTRA-IST. He is an expert on Numerical Relativity and Gravitational Waves from dynamical binaries. Welcome Nico!
Quantum gravitational effects in the near-horizon region of a black hole may drastically change the classical desc
A call for an Initial Level Doctorate Researcher in Particle Physics at our group is opened. Deadline: 12th of November 2020.
C. Herdeiro delivered an invited 5 lectures mini-course for Beijing Normal University on "Asymptotically flat black holes with hair in D=4", from October 13 to 27. The host was Professor Hongbao Zhang.
The XIII Black Holes workshop will take place in Lisbon, on the 21-22 December 2020.
We compute gravitational mass and angular momentum multipole moments for four-dimensional black holes and fuzzball geometries thereof. For Kerr and for supersymmetric black holes many multipole moments vanish, but we show that an infinite number of ratios of vanishing multipoles are constant.
Pre-recorded seminar video, part of the computational Imaging SPACE Webinar Series (available on youtube).
Stellar Compact object mergers are not only important sources of gravitational waves but also central engines that power electromagnetic transients and r-processes, if matter is involved. I will review recent progress modeling the merger of black hole-neutron star and neutron stars binaries highlighting state-of-the-art general relativistic hydrodynamic simulations.
Renormalizable Lagrangians for massive Yang-Mills fields
G. 't Hooft
Nucl. Phys. B 35 (1971) 167-188