Cosmology News & Events

The "New horizons for Psi school and workshop" will take place at IST Lisbon, 1-5 July 2024, with the participation of Gr@v members as speakers.

C. Herdeiro gave an invited colloquium at the Institutt for teoretisk astrofysikk of the University of Oslo Norway on September 1st 2023.

The paper "Two spinning black holes balanced by their synchronised scalar hair", describing the first construction of two asymptotically flat, neutral, spinning black holes in equilibrium, regular on and outside their event horizon, supported by their "hair", was published in Physical Review Letters and highlighted as Editors' Suggestion.

The VIII International Meeting of "Casa das Ciências" took place at the University of Aveiro from 17-19 July 2023, with the participation of hundreds of teachers. C. Herdeiro was one of the invited speakers talking about black holes and gravitational waves, with the moderation of M. Zilhão.

On Saturday July 15, part of the group got together, with some younger reinforcements, to celebrate the summer and the ending of the academic year. The result was the least important. Great fun, followed by a tasty seaside lunch to replace (in excess!) the burnt calories.

The VIII scalar field dark matter workshop will take place in Playa del Carmen, Mexico, on 29-30 September 2023. C. Herdeiro is one of the invited speakers.

Boson stars are a remarkable type of self-gravitating soliton, which admits multipolar configurations. The simplest non-spherical stars, but still static, are the dipoles, but are they dynamically stable? In the paper "Self-interacting dipolar boson stars and their dynamics", it is shown self-interactions help make these dipoles dynamically robust.

The 11th School on Astrophysics and Gravitation will take place at Instituto Superior Técnico in Lisbon, from 1-6 September 2023. C. Herdeiro and M. Zilhão are two of the lecturers. More info here.