Strong Gravity News & Events
Discussion of the paper " The fate of observers in circular motion ", by A. Lehébel and V. Cardoso
Discussion of the paper "Wada structures in a binary black hole system ", by Álvar Daza, et al.
Discussion of the paper "Inspirals from the innermost stable circular orbit of Kerr black holes: Exact solutions and universal radial flow", by A. Mummery and S. Balbus
BSM^2 - Beyond the Standard Model BrainStorming Meeting
The Beyond the Standard Model BrainStorming Meeting, BSM2, will take place at Aveiro University, hosted by the gr@v group, from 10-14 October 2022.
Data for Dipole Boson Stars
Here, numerical data described in the paper "Two boson stars in equilibrium", arXiv:2210.01833, is made available for public use.
The attachment "Data_files.zip", contains the data files:
- configuration-I.dat
- configuration-II.dat
- configuration-III.dat
These files correspond to the three representative dipolar BS (DBS) solutions among those described in the paper above. These solutions are:
Discussion of the paper "The fate of the light-ring instability", by Pedro V. P. Cunha, et al.
Pedro V. P. Cunha, Carlos Herdeiro, Eugen Radu and Nicolas Sanchis-Gual
4th Physics Conference of Portuguese-Speaking Countries – 4CFPLP
Gr@v member Ivo Sengo was one of the participants in the 4th Physics Conference of Portuguese-Speaking Countries – 4CFPLP, that took place in Cape Verde, from 12-16 September 2022. Ivo delivered a contributed talk on "Black hole shadows".
Visits of K. Uzawa and Z. Belkhadria
Our collaborator Kunihito Uzawa from Japan together with Zakaria Belkhadria, a Ph.D. student from U. Cagliari, Italy, are our guests this week. Zakaria is visiting us within a short term scientific mission of the COST action CA18108.
Elastic compact objects in General Relativity

In this seminar I will introduce a rigorous and general framework to study systematically self-gravitating elastic materials within general relativity. The formulation that will be presented in this seminar is particularly suitable to investigate the existence and viability, including radial stability, of spherically symmetric elastic stars.