Strong Gravity News & Events
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.
Post-doctoral researcher position in Strong Gravity
A call for a 10 month researcher position within the project Testing the Kerr hypothesis with gravitational waves and lensing, PTDC/FIS-AST/3041/2020, is open until July 3rd 2023. The call in Portuguese and English is attached. The Euraxess link is here.
Brans-Dicke and Ricci-squared Gravities: Sixty Years On... (New Exact Solutions, WEC, Wormholes, and More)
Speaker
Hoang Nguyen (Babeş–Bolyai University)
Event date
Venue
Online (only)
Event type
In this talk, I aim to challenge persistent misconceptions surrounding Brans-Dicke and (Buchdahl's) pure Ricci-squared theories. Through concrete counterexamples in the form of new exact solutions, I will shed light on theoretical aspects related to the violation of the Weak Energy Condition, the construction of wormholes, and the revelation of novel structures within these spacetimes.