XIII black holes workshop
The XIII Black Holes workshop will take place in Lisbon, on the 21-22 December 2020.
High Energy Physics News & Events
Black Holes Lessons from Multipole Ratios: A New Window into Black Holes
Speaker
Iosif Bena (Université Paris Saclay)
Event date
Venue
online (only)
Event type
We compute gravitational mass and angular momentum multipole moments for four-dimensional black holes and fuzzball geometries thereof. For Kerr and for supersymmetric black holes many multipole moments vanish, but we show that an infinite number of ratios of vanishing multipoles are constant.
The first portait of a black hole & beyond
Speaker
Katie Bouman (Caltech)
Event date
Venue
room 11.1.31 (Dep. Math.) and online
Event Website
Event type
Pre-recorded seminar video, part of the computational Imaging SPACE Webinar Series (available on youtube).
Core-collapse of fast rotators in the early universe
Speaker
Koh Takahashi (Max Planck Institute for Gravitational Physics)
Event date
Venue
online (only)
Event type
Abstract:
It is widely believed that the fast rotation of a massive star affects the dynamics of core-collapse and eventually results in the most luminous event in the present universe, the long gamma-ray burst (LGRB). Another important consequence of the fast rotation would be an energetic supernova explosion, which is often observed to be associated with LGRBs.
Stellar compact mergers as progenitors of short-gamma ray bursts
Speaker
Milton Ruiz Meneses (University of Illinois at Urbana-Champaign)
Event date
Venue
online (only)
Event type
Stellar Compact object mergers are not only important sources of gravitational waves but also central engines that power electromagnetic transients and r-processes, if matter is involved. I will review recent progress modeling the merger of black hole-neutron star and neutron stars binaries highlighting state-of-the-art general relativistic hydrodynamic simulations.
Discussion of the paper "Renormalizable Lagrangians for massive Yang-Mills fields" by G. 't Hooft
Speaker
João Pino (U. Aveiro)
Event date
Venue
online (only)
Ends on
Event type
Renormalizable Lagrangians for massive Yang-Mills fields
G. 't Hooft
Nucl. Phys. B 35 (1971) 167-188
Landmark papers
This page contains a preliminary list of landmark papers suggested by group members to be discussed in Journal Club sessions. Papers are organized by chronological order.
The asterisk (*) indicates that the paper has been selected for discussion.
Why can't time run backwards?
Speaker
Prof. Anthony James Leggett (Professor Emeritus, University of Illinois, USA)
Event date
Venue
room 11.1.2 and online
Event type
We can all tell when a movie of some everyday event, such as a kettle boiling or a glass shattering, is run backwards. Similarly, we all feel that we can remember the past and affect the future, not vice versa.
Gr@v in national TV
C. Herdeiro was one of the guests of Jornal 2, of RTP2, on October 6th, to talk about the Physics Nobel prize 2020. See the interview here (from 19:52 onwards).
Scientific background of 2020 Nobel Prize cites Gr@v researcher
The Scientific background document on the 2020 Nobel Physics Prize mentions the paper by C. Herdeiro and José S. Lemos (from IST Lisbon) on the genesis of the name "black hole" available in the arXiv (in English) and originally pubished in "Gazeta de Física" (in Portuguese).