On January 20th, 2026, the art–science exhibition was officially (re)opened at Fábrica - Centro Ciência Viva de Aveiro. The event was hosted by Fábrica’s director, Pedro Pombo, and brought together the head of the Department of Mathematics, Alexandre Almeida, and the director of CIDMA, Delfim Torres, along with several colleagues. This initiative is another step in sharing the beauty of science with a broader audience, strengthening the connection between scientific research and society.
Black holes are not merely cosmic sinks; they are the universe's most efficient reservoirs of energy, characterized by their mass, angular momentum (spin), electric charge, and surrounding magnetic fields. We explore the theoretical frameworks for tapping into these vast reserves.
In this talk, I will present our recent work on scattering of two boson stars by taking into account three effects: point-mass gravitational, tidal, and short-range scalar-field interactions. We first derive the analytical expressions of the scattering angle using PM-EFT techniques, providing the first analytical treatment of boson stars as a two-body problem.
Gr@v had the pleasure to host Zakaria Belkhadria (Université de Genève/Università degli Studi di Cagliari) who gave the group seminar on Dec 12th 2025.
Gr@v is welcoming expressions of interest for the 8th edition of the CEEC competition. This call will fund three-year postdoctoral research contracts, offered at two levels depending on the applicant’s experience. Interested researchers are invited to contact the group coordinator. Application deadline: 29 January 2026.
In the first week of December 2025 we had the pleasure of hosting Panagiotis Dorlis and Hendrik Mannenga, visiting from Athens and Oldenburg. Panagiotis gave an intersting seminar on How much gravitons can be squeezed. Many thanks for your visits!
25-11-25 was a wonderful day of celebration of past achievements, present efforts, and future horizons. It was a true joy to see so many colleagues, collaborators, and friends—who have shaped, and continue to shape, the history, present, and future of Gr@v, gathered both online and onsite. Thank you to everyone who has contributed to the first fifteen years of Gr@v during this remarkable era of strong-gravity research. We look forward to the next fifteen years!
Etevaldo Costa Filho visited the historic Niels Bohr Institute in Copenhagen to collaborate with Rodrigo Panosso Macedo. Cold weather but hot physics in Copenhagen!
Our group coordinated the "Numerical Relativity and High Energy Physics" IRSES network (2012-2015). Here is a list of the global network meetings organized:
