Paulo Sá
Name: Paulo M.
Strong Gravity News & Events
ICGC 24 and ICRAC 24
C. Herdeiro was one of the plenary invited speakers of the International Conference on Gravitation and Cosmology (ICGC 24) and the International Conference on Relativistic Astrophysics and Cosmology (ICRAC 24) that took place in Lahore, Pakistan on 29-31 Jan and 1-2 Feb 2024. Wonderful hospitality and great interactions. Science brings people together.
From Hubble to Bubble - gravitational waves from phase transitions after inflation
Speaker
Andreas Mantziris (University of Porto)
Event date
Venue
Hybrid: Sala Sousa Pinto and Zoom
Event type
The prospect of a stochastic gravitational wave (GW) background from the primordial universe offers a promising new window for cosmology and fundamental physics.
Numerical evolution of well-posed field theories with anisotropic scaling
Speaker
Marcelo Rubio (SISSA, Trieste)
Event date
Venue
On-site: Room TBD
Event type
Dynamical equations exhibiting an anisotropic scaling between space
and time admit a dispersive nature, as they contain higher-order spatial derivatives,
but remain second order in time.
Black Hole Superradiance video
Visakan Balakumar, Marie Curie seconded fellow within the RISE FunFiCO project, coordinated by Gr@v, authored a YouTube outreach video on superradiance. Check it out here!
Phys.org coverage
Read here the phys.org coverage of two papers published in Phys. Rev. X and Phys. Rev. D in December 2023, involving members of Gr@v.
Signatures of domain wall networks: from gravitational waves to primordial black holes
Speaker
Ricardo Ferreira (University of Coimbra)
Event date
Venue
Hybrid: Sala Sousa Pinto and Zoom
Event type
The Domain Wall (DW) problem is the fact that DW networks that result from the spontaneous breaking of discrete symmetries tend to dominate the universe's energy budget.
However, if the symmetry is not exact the network annihilates and the problem turns into a virtue, as the network tends to be an abundant component before its collapse, and is thus easier to probe.
Confinement of exotic energy
Speaker
Dario Núñez (UNAM)
Event date
Venue
On-site: Sala Sousa Pinto
Event type
By solving the Einstein's field equations, we derive several
configurations of compact objects with a nucleus of exotic energy in a
static and spherically symmetric spacetime. In this talk I describe the
derivation and several properties of the configurations, including the
fact that in some of these objects can be reached a compacity as close to
XVI Black Holes Workshop in Porto
15 years after the first edition of the Black Holes Workshop that took place at the Faculty of Sciences of Porto University, the XVI Black Holes Workshop returned to Porto, this time in the Faculty of Engineering. The next edition will take place at the University of Aveiro on 19-20 December 2024.
Gr@v paper in Physical Review X
An article on the parameter inference from gravitational wave signals using a novel methodology based on the Newman-Penrose scalar was published this month (December 2023) in Physical Review X. The article is co-authored by Gr@v members C. Herdeiro and E. Radu. PRX has similar quality standards as Physical Review Letters but for longer papers. It has an impact factor of 12.5 (2022).