VIII scalar field dark matter workshop
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.
Strong Gravity News & Events
Self-interacting dipolar boson stars and their dynamics
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.
Manuel Mariano
Full Name: Manuel Gonçalo Oliveira Mariano Position: BI grant holder
11th School on Astrophysics and Gravitation
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.
Great visits
At the end of June 2023 we have enjoyed the visits of Juan Carlos Degollado (UNAM - Mexico), Nico Sanchis Gual (Valencia - Spain) and Mikaela Carrasco (USFQ - Ecuador). Nine nationalities in this group photo taken on June 28 - science brings people together!
European Einstein Toolkit Meeting 2023
Our group organised the European Einstein Toolkit Meeting 2023, at the University of Aveiro, 19-23 June 2023. We had excellent speakers throughout the week, and everybody had a great time. Next year's meeting should be held in Amsterdam; hope to see everyone there!
Discussion of the paper "Universal Interferometric Signatures of a Black Hole's Photon Ring", by Michael D. Johnson, et al.
Speaker
Haroldo Lima (UFPA, Brasil)
Event date
Venue
Sala 11.2.21 and online
Ends on
Event type
Universal Interferometric Signatures of a Black Hole's Photon Ring
Michael D. Johnson, et al.
ArXiv:1907.04329
Discussion of the paper "The NANOGrav 15-year Data Set: Search for Signals from New Physics" by Adeela Afzal et al.
Speaker
Guilherme Raposo (U. Aveiro)
Event date
Venue
Sala 11.2.21 and online
Ends on
Event type
The NANOGrav 15-year Data Set: Search for Signals from New Physics Adeela Afzal, et al; arXiv: 2306.16219 [gr-qc]
Dynamical l-boson stars
Speaker
Juan Carlos Degollado (Universidad Nacional Autonoma de Mexico)
Event date
Venue
Hybrid Sala Sousa Pinto (Math dpt) and Zoom
Event type
In this talk I will review some properties of solutions to the static, spherically symmetric Einstein-Klein-Gordon system for a collection of an arbitrary odd number N of complex scalar fields with an internal U(N) symmetry and no self-interactions known as l-boson stars.