The group's research on strong gravity involves finding analytical and numerical solutions of Einstein's theory of general relativity, and many of its extensions, either in vacuum or coupled to various types of matter. For our latest developments/activities in this area, please see the listing at the end of this article.
The prime examples of (relativistic) strong gravitational systems are Black Holes. They are truly unifying objects of all physics. The understanding of their formation and dynamics requires the laws of all four fundamental forces, and their physics is relevant not only for astrophysics and cosmology but for a variety of topics within high energy physics.
See here a movie made by the COST action `Black holes in a violent universe', in which our group participates, for a visual overview of different types of black holes.
Resonant electroweak clouds around Schwarzschild black holes, C. Herdeiro, E. Radu; arXiv:2611.03809 [hep-th].
Swirling spacetimes in higher dimensions: Vacuum backgrounds and black holes, J. Barrientos, A. Cisterna, C. Herdeiro, K. Pallikaris; arXiv:2610.12372 [gr-qc].
Nonlinear electroweak sphaleron clouds around Kerr black holes, C. Herdeiro, J. Kunz, H. Mennenga, E. Radu; arXiv:2609.31845 [hep-th].
Boson Star Factory: Past, Present, and Future, R. Gervalle, J. F. M. Delgado, E. dos Santos Costa Filho, C. Herdeiro, V. Jaramillo, E. Radu; arXiv:2609.24913 [gr-qc]
Bosonic stars with dark electroweak fields, E. dos Santos Costa Filho, R. Gervalle; arXiv:2609.19273 [gr-qc].
In this talk, I will discuss recent developments in Einstein–ModMax theory, a nonlinear extension of electrodynamics that preserves conformal invariance and electromagnetic duality. I will first introduce charged, accelerating black-hole solutions in the C-metric family and discuss their key geometric properties.
The Gr@v research group invites expressions of interest from researchers wishing to apply to the forthcoming 9th edition of the Individual Call to Scientific Employment Stimulus (CEEC Individual), funded by the Portuguese Foundation for Science and Technology (FCT).
The CEEC Individual programme offers competitive funding for three-year research contracts, providing an opportunity for talented researchers to develop their scientific careers in Portugal.