XVI Black Holes Workshop
The XVI Black Holes Workshop will take place on 19-20 December 2023 at Porto University, co-organized by our group. More info can be found here.
Strong Gravity News & Events
Discussion of the paper "Instability and backreaction of spin-2 fields around black holes", by Will East and N. Siemonsen
Speaker
Marco Brito (U. Aveiro)
Event date
Venue
Hybrid: Room Sousa Pinto and Zoom
Ends on
Event type
Instability and backreaction of spin-2 fields around black holes
William E. East, Nils Siemonsen
2309.05096 [gr-qc]
Discussion of the paper "Pseudospectrum and Black Hole Quasinormal Mode Instability", by Jaramillo J L, et al.
Speaker
Miguel Zilhão (U. Aveiro)
Event date
Venue
Hybrid: Room Sousa Pinto and Zoom
Ends on
Event type
Pseudospectrum and Black Hole Quasinormal Mode Instability
José L Jaramillo, Rodrigo P Macedo, Lamis Al Sheikh
2004.06434 [gr-qc]
Round table on black holes during EVA
From 4-8 September 2023 the IST Astronomy Summer School gathered enthusiastic high school students to learn about astronomy. Amongst the activities there was a round table with the participation of our grup. The video link of the discussion can be found here.
Discussion of the paper "Where and why does Einstein-scalar-Gauss-Bonnet theory break down?", by Hegade K R, et al.
Speaker
Pedro Cunha (U. Aveiro)
Event date
Venue
Online only (Zoom)
Ends on
Event type
Where and why does Einstein-Scalar-Gauss-Bonnet theory break down?
Abhishek Hegade K R, Justin L. Ripley, Nicolás Yunes
Discussion of the paper "Static Black Binaries in de Sitter space", by Óscar Dias, et al.
Speaker
João Novo (U.Aveiro)
Event date
Venue
Hybrid: Room Sousa Pinto and Zoom
Ends on
Event type
Static black binaries in de Sitter space
Óscar J. C. Dias, Gary W. Gibbons, Jorge E. Santos, and Benson Way
arXiv: 2303.07361v2
Numerical black hole perturbation theory
Speaker
Lidia Gomes da Silva (QMUL, London)
Event date
Venue
On-site: Room 11.2.21
Event type
Extreme-Mass-Ratio-Inspirals (EMRIs) modelling in time-domain has been anything but trivial due to the challenges associated with resolving the discontinuity emerging from the point-particle model
Detecting environmental effects
Speaker
Laura Sberna (Albert Einstein Institute, Potsdam)
Event date
Venue
Online only
Event type
Gravitational-wave observations of extreme mass ratio inspirals (EMRIs) hold incredible potential to probe gravity, astrophysical and exotic environments. One of the main effects of astrophysical environments — in particular active galactic nuclei — is the torque exerted by their gaseous disk, which forces EMRIs to “migrate” (mostly) inward like planets.
Primordial Black Holes from Inflation: recent challenges and opportunities in the GW era
Speaker
Gabriele Franciolini (Sapienza University)
Event date
Venue
Online only
Event type
Primordial black holes (PBHs) might form in the early universe and could comprise a significant fraction of the dark matter. If they are generated due to enhanced scalar perturbations at small scales, their formation is inevitably accompanied by the emission of gravitational waves (GWs) that could be seen by current and future GW experiments.
Black hole binaries in ultralight dark matter environments
Speaker
Rodrigo Vicente (IFAE, Barcelona)
Event date
Venue
Hybrid: Room 11.2.21 and Zoom
Event type
Ultralight dark matter is an exciting alternative to the standard cold dark matter paradigm, reproducing its large scale predictions, while solving most of its potential tension with small scale observations (like the "cusp-core" and "missing satellites" problems).