Gr@v webinars
Pandemia doesn't stop us! Gr@v webinars are the group's virtual meeting place, taking place every week. Interested collegues that wish to join may do so by contacting the group's scientific coordinator.
Strong Gravity News & Events
Dirac QNMs on asymptotically anti-de Sitter spacetimes with Robin boundary conditions
Speaker
Mengjie Wang (Aveiro U. and Hunan Normal U., China)
Event date
Venue
online
Event type
In this talk, I will briefly introduce our recent work of Dirac quasinormal modes (QNMs) on asymptotically anti-de Sitter (AdS) spacetimes by imposing Robin type vanishing energy flux boundary conditions (BCs). We first study neutral Dirac fields propagating on a Schwarzschild-AdS spacetimes.
Light ring theorem covered by Phys.Org
The paper "Stationary black holes and light rings" recently published in PRL as editor's suggestion was covered by Phys.Org. Read here the story.
Gravitational Waves From Inflaton Decays
Speaker
Da Huang (U. Aveiro and U. Lisbon)
Event date
Venue
online
Event type
Because of the universality of gravitational interactions, it is generally expected that a stochastic gravitational wave (GW) ba
Gravitational footprints of massive neutrinos and lepton number breaking
Speaker
António Morais (UA)
Event date
Venue
online
Event type
Discussion on the paper "Gravitational footprints of massive neutrinos and lepton number breaking"
Two postdoctoral positions at CIDMA
CIDMA, the research unit Gr@v integrates, has annouced two one year postdoctoral positions starting in September 2020. Candidates should hold a Ph.D. in Mathematics or related areas (the scientific areas of Gr@v are elegible). The application period is May 14th-31st. More details can be found here and here.
Stationary black holes and light rings
Speaker
Pedro Cunha (AEI, Germany)
Event date
Venue
online
Event type
Discussion on the paper "Stationary black holes and light rings", ArXiv:2003.06445 to appear in Physical Review Letters, as an Editor's Suggestion.
Black holes with Proca hair/Spinning Proca stars
Here, the numerical data described in the paper "Black holes with synchronised Proca hair: linear clouds and fundamental non-linear solutions", arXiv:2004.09536 [gr-qc] [1], is made available for public use.
This data pertains the fundamental states (n=0) of these hairy black holes and spinning Proca stars. Some data for the excited states (n=1) was previously made available here.
Counterterm method and thermodynamics of Hairy Black Holes in a Vector-Tensor theory with Abelian gauge symmetry breaking
Speaker
Aichen Li
Event date
Venue
online
Event type
Discussion on the paper "Counterterm method and thermodynamics of Hairy Black Holes in a Vector-Tensor theory with Abelian gauge symmetry breaking ", ArXiv:2004.08329
"One ring is a rule to them all" in PRL as Editor's Suggestion
In the article "Stationary black holes and light rings" by P. Cunha and C. Herdeiro, published in Physical Review Letters, as Editor's Suggestion, a theorem is proven establishing that, under very generic conditions, any black hole must have a light ring.