Darío's farewell
Group get together to cellebrate Prof. Darío Nuñez, from UNAM, Mexico City, one year visit (Oct 2023 - Sep 2024). Many thanks Darío for the wonderful discussions, positive energy and dynamics. We hope you come back soon!
Astrophysics News & Events
Dinner with many visitors
On Wednesday 18, we gathered for a dinner in town to celebrate our many visitors. While Víctor Jaramillo (University of Science and Technology of China), Raimon Luna and Milton Ruiz (both from University of Valencia) joined us for a week, we also welcomed longer term guests Ana Bokulić (University of Zagreb) and Razieh Ranjbar (Ferdowsi University).
Complex structures of boson stars and anisotropic distribution of satellite galaxies
Speaker
Víctor Jaramillo (University of Science and Technology of China)
Event date
Venue
On-site: Sala Sousa Pinto
Event type
We construct and explore Noether charge-swapping structures of boson stars, drawing inspiration from similar configurations of non-topological solitons in Minkowski space (Charge-swapping Q-balls). The resulting structures are dynamic, with a multipolar structure and both positive and negative Noether charges within a star.
Phase space mixing of a Vlasov gas in the exterior of a Kerr black hole
Speaker
Olivier Sarbach (Universidad Autónoma Metropolitana Cuajimalpa, Universidad Michoacana de San Nicolás de Hidalgo)
Event date
Venue
On-site: Sala Sousa Pinto
Event type
We analyze the dynamics of a collisionless kinetic gas propagating in the exterior of a rotating Kerr black hole. We focus on the phase space region corresponding to orbits that are bounded in space.
VII Black Holes Workshop
The XVII Black Holes Workhop will take place at the U. Aveiro, on the 19-20 December 2024. More info here.
Black holes Inside and Out
The stimulating "Black Holes Inside and Out" meeting took place in Copenhagen, Denmark, in August 2024. C. Herdeiro was one of the invited speakers. More info here.
Talks in Belém and Salinas
Within the decade long collaboration between Gr@v and the gravity group at Federal University of Pará, Brasil, C. Herdeiro visited the UFPA Campi in Belém and Salinas in August 2024, giving scientific seminars and outreach talks.
12 million CPU-hours awarded to our group
A computing proposal prepared by S. Gimeno-Soler, P. Cunha, I. Sengo and C. Herdeiro, and led by H. Olivares was awarded with 12 million CPU-hours at the supercomputer Mare Nostrum 5.
The project, titled "Exploring accretion and spacetime models for event-horizon-scale observations of low-luminosity active galactic nuclei", will explore new models of accretion flows and spacetime geometries for the targets of the Event Horizon Telescope using simulations as the one shown in the picture (Image credit: H. Olivares and P. Cunha).
The project, titled "Exploring accretion and spacetime models for event-horizon-scale observations of low-luminosity active galactic nuclei", will explore new models of accretion flows and spacetime geometries for the targets of the Event Horizon Telescope using simulations as the one shown in the picture (Image credit: H. Olivares and P. Cunha).
Boson stars and their relatives in semiclassical gravity
Speaker
Juan Barranco (University of Guanajuato)
Event date
Venue
On-site: Room 11.2.21
Event type
Visit to Beijing
C. Herdeiro visited the ICTP-Asia Pacific and the University of the Chinese Academy of sciences, in Beijing, presenting an invited seminar hosted by Prof. Yu Tian.