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!
Astrophysics 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!
Talk on the 2020 Nobel Physics Prize
Watch here a talk on the 2020 Nobel Physics Prize given by C. Herdeiro at the invitation of the Centre for Theoretical and Computational Physics of the University of Lisbon.
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.
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.
Kerr (smooth) deviations and Symmetries
Speaker
Georgios O. Papadopoulos
Event date
Venue
online (only)
Event type
A novel approach in constructing deviations of the Kerr spacetime whereas
the symmetries can be preserved is presented. The method was applied
trivially in all known classical black-hole spacetimes tested, while
provides the possibility of testing and inventing deformations of Kerr in
a quick and innovative way. The methodology is based on earlier work by
Discussion of the paper "Gravitational Radiation from Colliding Black Holes" by S. W. Hawking
Speaker
Carlos A. R. Herdeiro (U. Aveiro)
Event date
Venue
online (only)
Ends on
Event type
Gravitational Radiation from Colliding Black Holes
S. W. Hawking
Phys. Rev. Lett. 26 (1971) 1344-1346