Gr@v Journal Clubs during the Covid-19 Pandemic
Research cannot stop, even in this exceptional time! Gr@v member keep meeting virtually to push the group activities.
Strong Gravity News & Events
The 4D Einstein Gauss-Bonnet theory: features, concerns and alternative approaches
Speaker
Pedro G. S. Fernandes, School of Physics and Astronomy, Queen Mary University of London
Event date
Venue
online
Event type
Recently, a novel modified theory of gravity that claims to bypass Lovelock's theorem whilst preserving the number of gravitational degrees of freedom has attracted a great deal of attention.
Spherical electro-vacuum black holes with resonant, scalar Q-hair
Speaker
Eugen Radu
Event date
Venue
online
Event type
Discussion of the paper "Spherical electro-vacuum black holes with resonant, scalar Q-hair",
ArXiv:2004.00336
Linear growth of massive vector superradiant instabilities of Kerr black holes
Speaker
Nuno M. Santos (IST-Lisbon)
Event date
Venue
online
Event type
A recent breakthrough in the separability of the Proca equation in Kerr spacetime opened up new opportunities for a thorough study of fast-growi
Observational signatures from supermassive black hole mimickers
Speaker
Hector Olivares (Radboud University Nijmegen, Netherlands)
Event date
Venue
online
Event type
Advanced interferometric techniques as those employed in the Event Horizon Telescope (EHT) and GRAVITY recently allowed to study the environment of the two nearest supermassive black hole candidates at horizon-scale resoluton.
Dynamics of bosonic stars
Fabrizio di Giovanni gave us a nice update on the dynamical properties of bosonic stars, from numerical relativity simulations.
Visits of Fabrizio di Giovanni, Kunihito Uzawa and Nico Sanchis-Gual
Fabrizio di Giovanni (Valencia U., Spain), Kunihito Uzawa (Kwansei Gakuin U., Japan) and Nico Sanchis-Gual (IST-Lisbon) visited our group in the second week of March. Many scientific discussions and hard work were rewarded with a very nice dinner in Aveiro!
Slow roll inflation and the swampland
Kunihito Uzawa (Kwansei Gakuin U., Japan) gave us a nice update on the swampland conjecture and its implications in cosmology.
Invited Colloquium in Cambridge and Seminar in Southampton
Gr@v member C. Herdeiro gave an invited colloquium at the Centre for Mathematical Sciences, U. Cambridge, of the GR and HEP groups on March 4th and an invited seminar at STAG, School of Mathematical Sciences, U. Southampton in March 5th.
Holographic surface counterterms and it’s application in Einstein-Proca theory
Speaker
Aichen Li
Event date
Venue
Maths. Dept. Room Sousa Pinto
Event type
Discussion of ongoing work.