All talks are 12 minutes (we suggest 10+2 minutes for questions).

Monday 20/12/2021 Tuesday 21/12/21
08H30 Registration
08H45 Opening
Session 1
Chair: Herdeiro
Session 5
Chair: Moura
09H00-09H12 J. Costa
Black hole uniqueness theorems: brief history and state of affairs
G. Cardoso
BPS black holes and number theory: exact results for statistical black hole entropy
09H12-09H24 J. Afonso
Supermassive Black Holes as drivers of galaxy formation: from the Milky Way to the edge of the Universe
R. Ferreira
Super-Hawking Radiation
09H24-09H36 P. Garcia
Recent results from the GRAVITY collaboration on SgrA* supermassive black hole
J. Arrechea
Semiclassical relativistic stars
09H36-09H48 M. Zilhão
Scalar fields and gravitational molecules
L. Campos
Probing thermal effects on static black holes with Unruh-DeWitt detectors
09H48-10H00 N. Sanchis-Gual
Can fermion-boson stars reconcile multi-messenger observations of compact stars?
V. Boyanov
Mass inflation in classical and semiclassical gravity
10H00-10H12 T. Ikeda
Black hole eating boson star
M. Calzà
Evaporating primordial black holes, the string axiverse, and hot dark radiation
10H12-10H24 G. Raposo
Elastic compact objects in general relativity
T. Fernandes
Grand canonical emsemble of a d-dimensional Reissner-Nordstrom black hole in a cavity
10H24-10H36 A. Morais
Ultralight bosons for strong gravity applications from simple Standard Model extensions
J. Simão
Spin-foam models of Quantum Space-Time: Semiclassics
10H36-11H10 Coffee Break Coffee Break
Session 2
Chair: Cardoso
Session 6
Chair: Lemos
11H10-11H22 J. Lemos
Stability of quasiblack holes, quasinonblack holes and regular black holes
J. G. Rosa
Primordial black hole superradiant instabilities
11H22-11H34 R. Costa
Hidden spectral symmetries and mode stability for Kerr(-de Sitter) black holes
N. Santos
A bound on energy extraction (and hairiness) from superradiance
11H34-11H46 E. Gasperin
Staticity and regularity for spin-2 fields near spatial infinity on flat spacetime
O. Zaslavskii
Nonextremal black hole as particle accelerator
11H46-11H58 F. Moura
Asymptotic quasinormal modes of Gauss-Bonnet d-dimensional black holes
M. Ortaggio
Robinson-Trautman spacetimes coupled to conformally invariant electrodynamics in higher dimensions
11H58-12H10 J. Oliveira
Virial Identities for higher dimensional effective actions
12H10-12H22 P. Ildefonso
Evolution of Dipolar Boson Stars and Head-on Collisions of Spherical Boson Stars
12H22-12H34
12H34-14H30 Lunch Lunch
Session 3
Chair: Mena
Session 7
Chair: Cunha
14H30-14H42 D. Ayzenberg
Testing gravity with black hole shadow subrings
A. Pombo
The ability of the spectral decomposition to correctly describe Kerr black holes with scalar hair
14H42-14H54 P. Cunha
Testing the Kerr paradigm using strong gravitational lensing
F. Costa
Frame-dragging: meaning, myths, and misconceptions
14H54-15H06 J. L. Rosa
Observational signatures of bosonic stars at the galactic centre
A. Vratny
An improved form of type D black holes
15H06-15H18 J. Delgado
Equatorial timelike circular orbits around generic ultracompact objects
S. Knoska
Schwarzschild-Bach black holes in the Eddington–Finkelstein-like coordinates: explicit solution and its properties
15H18-15H30 S. Barsanti
Extreme Mass Ratio Inspirals as probes of scalar fields
J. Yang
Einstein-Maxwell-dilaton neutral black holes in strong magnetic fields: topological charge, shadows and lensing
15H30-15H42 H. Junior
Can different black holes cast the same shadow?
15H30-16H00 Coffee Break
15H42-15H54 Session 8
Chair: Sanchis-Gual
zoom link
15H54-16H06 16H00-16H10 R. Brito
Constraints on quasinormal-mode frequencies with LIGO-Virgo binary–black-hole observations
16H06-16H40 Coffee Break 16H10-16H20 R. Luna
The large D limit of General Relativity
Session 4
Chair: Radu
16H20-16H30 L. Annulli
Close limit approximation for modified gravity: Scalar instabilities in binary black hole spacetimes
16H40-16H52 M. Volkov
Stationary generalizations for the Bronnikov-Ellis wormhole and for the vacuum ring wormhole
16H30-16H40 F. Duque
Black-hole mimickers take time to fuel-up
16H52-17H04 C. Erices
Thermodynamics of axionic black strings in dynamical Chern-Simons modified gravity
16H40-16H50 M. Minamitsuji
Black holes in extended vector-tensor theories
17H04-17H16 L. Collodel
Geometrical Features of Black Holes in EsGB Theories
16H50-17H00 R. Vicente
Dynamical friction of black holes in ultralight dark matter
17H16-17H28 J. Valcarcel
Rotating Kerr-Newman space-times in Metric-Affine Gravity
17H00-17H10 A. Vano-Vinuales
Hyperboloidal trumpet black hole slices and their causal visualization
17H28-17H40 N. Mora
Slowly rotating black holes in Quasi-topological gravity
17H10-17H20 A. Foschi
Constraining a scalar field cloud near Sgr A*
17H40-17H52 R. Monica
Orbital precession of the S2 star in Scalar-Tensor-Vector-Gravity
17H20-17H30 M. Vaglio
Fast rotating massive boson stars from strongly self-interacting scalar fields: stellar structure and multipole moments
17H52-18H04 R. Gervalle
Asymptotically flat hairy black holes in Massive Bigravity
17H30-17H40 J. Feng
Sharp density gradients in generalized coupling theories
18H04-18H16 17H40-17H50 J. Nicoules
First applications of a new evolution code based on the Kadath library
18H20-19H00 SPRG General Assembly 17H50-18H00 D. Trestini
Gravitational Waves in Scalar-Tensor Theory to one-and-a-half post-Newtonian order
18H00-18H10 E. Cannizzaro
Photon-plasma interactions in curved spacetime
18H10-18H20 I. Fernández
Comparison of linear Brill and Teukolsky waves

A complete Book of Abstract can be found here.

Organizing Committee: Pedro Cunha, Jorge Delgado, Carlos Herdeiro, Alexandre Pombo, Eugen Radu, Nico Sanchis-Gual, Nuno Santos
Scientific Committee: Vitor Cardoso (CENTRA), João Costa (ISCTE), Carlos Herdeiro (Aveiro), Filipe Mena (IST), José Natário (IST), José Sande Lemos (CENTRA)
Administrative Support: Cristina Grosso
Email Contact: bhw14@ua.pt