In this talk, we investigate two radiation phenomena around compact objects.
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.
The Science and art exhibit "Traces of curvature" will reopen on January 20, 2026 at Fábrica, "Centro Ciência Viva", in Aveiro, and stay in exhibition for three months.
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.
Part 1: kobra: A Vlasov Code with AMR
We kicked off 2026 with a get-together alongside collaborators Roman Pasechnik and Antonio Morais. A special highlight: the next generation joined in as well - future scientists already in the making!
The 10th anniversary of the Portuguese Society of Relativity and Gravitation (SPRG), along with the anniversary of the first gravitational wave (GW) detection, was celebrated with a specially made cake at the XVIII Black Holes Workshop.
Current and former members of Gr@v met at the XVIII Black Holes Workshop in Lisbon.
C. Herdeiro is one of the lecturers in the Licán Ray meeting, Chile, on Black Hole Physics, at the end of January 2026.