Extremal Hairy Black Holes
Speaker
Mengjie Wang
Event date
Venue
GAP room
Event type
Strong Gravity News & Events
Simulating Accreting Binary Black Holes
Speaker
Miguel Zilhão (Rochester Institute of Technology)
Event date
Venue
GAP room
Event type
Abstract: In this talk, we introduce the field of General Relativistic Magnetohydrodynamics (GRMHD) and give an overview on recent effort toward simulating and visualizing astrophysically realistic gas dynamics around compact binaries. In particular we motivate our group's approach, where a post-Newtonian expansion is used to construct an analytic spacetime, and we show preliminary results of circumbinary disks surrounding an equal-mass non-spinning black hole binary.
Living Reviews in Relativity
Living Reviews in Relativity, a most prestigious, invitation only, review journal on the topic of gravitational physics, with an impact factor of 22.333 (2012), is publishing the review article "Exploring new physics frontiers through numerical relativity", authored by V. Cardoso, L. Gualtieri, C. Herdeiro and U. Sperhake.
Permanent position for Juan Carlos Degollado
Juan Carlos Degollado Daza, who has been a post-doctoral research at Gr@v since 2012, working on numerical relativity, has accepted a permanent professor position at the University of Guadalajara, Mexico. Congratulations Juan Carlos, well done!
Warped AdS3 black holes: classical mode stability
Speaker
Hugo Ferreira (Nottingham U.)
Event date
Venue
GAP room
Event type
Abstract: (2+1)-dimensional gravity allows us to study aspects of classical and quantum gravity in a simpler technical setting which retains much of the conceptual complexity of the standard (3+1)-dimensional gravity. However, pure Einstein gravity lacks propagating degrees of freedom in 2+1 dimensions.
Teleparallelism Equivalent to General Relativity
Speaker
Sérgio Ulhoa (U. Brasília)
Event date
Venue
GAP room
Event type
Abstract: Teleparallel gravity is an alternative theory of gravitation. It is entirely equivalent to General Relativity in what concerns dynamical evolution. The main advantage of such a theory is that in its realm it is possible to define an expression for the gravitational energy.
Radiation from a D-dimensional collision of shock waves: analytical results
Speaker
Flávio Coelho
Event date
Venue
GAP room
Event type
Relativistic elasticity of rigid rods and strings
Speaker
José Natário (IST, U. Lisbon)
Event date
Venue
GAP room
Event type
Abstract: After a brief discussion of relativistic elasticity, we consider rigid one-dimensional elastic bodies (i.e. rods or strings whose speed of sound is equal to the speed of light) in a few simple examples: a rigid rod colliding with an unmovable wall, a rigid rod being pushed by a constant force, a rigid string whose endpoints are simultaneously set in motion (seen as a special case of Bell's spaceships paradox), and a radial rigid string that has partially crossed the event horizon of a Schwarzschild black hole while still being held from the outside.
Quantum Black Holes: from the Hoop Conjecture to possible searches for their decay signatures
Speaker
Octavian Micu (ISS Bucharest)
Event date
Venue
GAP room
Event type
Abstract: The talk will focus on two problems: Black holes formation by particle collisions in quantum physics.The approach which will be presented is based on constructing a horizon wave-function which yields the probability of finding a black hole horizon of a certain radius centered around the source.
III Amazonian workshop on black holes
The III Amazonian workshop on black holes and analogue models of gravity will take place in UFP, Belém do Pará, Brazil, from 4-7 August 2014. This is a satellite workshop of the IRSES Marie Curie action on "Numerical Relativity and High Energy Physics", of which the U. Aveiro and UFP are both partners.
See the media coverage by the UFPA press here.