The mean-motion resonance is one of the most interesting phenomena in celestial mechanics. Its importance lies on the comprehension of the formation and long-term stability of planetary systems in close orbits.
Five of the ground-breaking gravitational wave detections by the LIGO/Virgo collaboration have been interpreted as black hole collisions forming a more massive black hole. It is hard to demonstrate conclusively that these objects are indeed black holes, and there is a lively debate on the intriguing possibility that other, more exotic alternatives could explain the observations. In an article published in Physical Review Letters, Gr@v members P. Cunha and C.
Alexandre Pombo successfully finished his Physics M.Sc. at Aveiro University, on October 10th 2017, by defending a thesis with title "Q-balls spectroscopy and construction of boson stars". This thesis was supervised by Gr@v researchers and examined by Prof. Yves Brihaye, from the University of Mons, Belgium. Well done Alexandre!
Helgi Rúnarsson successfully defended his PhD thesis "Kerr black holes with scalar and Proca hair". The exam took place at the University of Aveir, on October 9th 2017. The thesis was supervised by Gr@v members C. Herdeiro and E. Radu and former member J. C. Degollado, now at UNAM (Mexico). Congratulations Helgi!
Position: Ph.D Student
Research Area: Planetary Dynamics
Supervisor: Alexandre Correia (UC)
Office:
Email: emavalente@ua.pt
The XXVII National Meeting of Astronomy and Astrophysics (ENAA) took place on the 20-21 July at the University of Lisbon. Gr@v contributed to the scientific committee (A. Correia) and to the public event (C. Herdeiro) under the Ignite format.
Group members P. Cunha and C. Herdeiro were two of the participants in the "Strong Gravity Universe" workshop, in S. Miguel island, Azores. This meeting was co-sponsored by the GWVerse COST action and StronGrHEP RISE network.
"90 seconds of Ciencia" is a daily programme of the National Public Radio, Antena 1. Hear in this link the contribution of Gr@v researchers to this excellent show that makes accessible to a larger audience the research made in Portugal, across all fields of knowledge.