New Gr@v research students
Four new research students have joined Gr@v this fall: Jenzhi Yang, Ivo Sengo, Vasileios Vatellis and João Pino. Welcome!
High Energy Physics News & Events
Nico Sanchis-Gual joins Gr@v
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!
Echoes of quantum black holes from Kerr/CFT
Speaker
Ramit Dey
Event date
Venue
online (only)
Event type
Quantum gravitational effects in the near-horizon region of a black hole may drastically change the classical desc
Research position in Particle Physics
A call for an Initial Level Doctorate Researcher in Particle Physics at our group is opened. Deadline: 12th of November 2020.
Mini lecture course for Beijing Normal University
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.
XIII black holes workshop
The XIII Black Holes workshop will take place in Lisbon, on the 21-22 December 2020.
Black Holes Lessons from Multipole Ratios: A New Window into Black Holes
Speaker
Iosif Bena (Université Paris Saclay)
Event date
Venue
online (only)
Event type
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.
The first portait of a black hole & beyond
Speaker
Katie Bouman (Caltech)
Event date
Venue
room 11.1.31 (Dep. Math.) and online
Event Website
Event type
Pre-recorded seminar video, part of the computational Imaging SPACE Webinar Series (available on youtube).
Core-collapse of fast rotators in the early universe
Speaker
Koh Takahashi (Max Planck Institute for Gravitational Physics)
Event date
Venue
online (only)
Event type
Abstract:
It is widely believed that the fast rotation of a massive star affects the dynamics of core-collapse and eventually results in the most luminous event in the present universe, the long gamma-ray burst (LGRB). Another important consequence of the fast rotation would be an energetic supernova explosion, which is often observed to be associated with LGRBs.
Stellar compact mergers as progenitors of short-gamma ray bursts
Speaker
Milton Ruiz Meneses (University of Illinois at Urbana-Champaign)
Event date
Venue
online (only)
Event type
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.