C. Herdeiro delivered an invited 5 lectures mini-course for Beijing Normal University on "Asymptotically flat black holes with hair in D=4", from October 13 to 27. The host was Professor Hongbao Zhang.
The XIII Black Holes workshop will take place in Lisbon, on the 21-22 December 2020.
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.
Pre-recorded seminar video, part of the computational Imaging SPACE Webinar Series (available on youtube).
A novel approach in constructing deviations of the Kerr spacetime whereas
the symmetries can be preserved is presented. The method was applied
trivially in all known classical black-hole spacetimes tested, while
provides the possibility of testing and inventing deformations of Kerr in
a quick and innovative way. The methodology is based on earlier work by
On Continued Gravitational Contraction
J. R. Oppenheimer and H. Snyder
Phys. Rev. 56 (1939) 445-459
As support material for highschool textbooks C. Herdeiro discussed with Professor Manuel Fiolhais how one can explain the concept of black hole for highschool students and the 2020 Nobel physics prize.
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.
Gravitational Collapse and Space-Time Singularities
R. Penrose
Phys. Rev. Lett. 14 (1965) 57-59
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.