2016 CAP Congress / Congrès de l'ACP 2016

Session

T1-8 General Relaivity (DTP) / Relativité générale (DPT)

T1-8

14 Jun 2016, 08:30

University of Ottawa

Conveners

T1-8 General Relaivity (DTP) / Relativité générale (DPT)

• Gabor Kunstatter (University of Winnipeg)

1268. Observation of gravitational waves from a binary black hole merger

Prof. Harald Pfeiffer (CITA, University of Toronto)

14/06/2016, 08:30

Theoretical Physics / Physique théorique (DTP-DPT)

Invited Speaker / Conférencier invité

On September 14, 2015, the LIGO detectors observed gravitational waves from a merger of two black holes. This talk describes the LIGO instruments and the LIGO Scientific Collaboration. It presents details of the observed gravitational wave event and discusses implications to astrophysics and tests of general relativity.

1293. Universal Horizons in Collapsing Reissner-Nordstrom Metrics

Michael Meiers

14/06/2016, 09:00

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

An investigation of an analogous structure to an event horizon in theories which break Lorentz symmetry. Recent work has shown that in simple spacetimes Lorentz violating theories, such as Einstein-Aether or Horava-Lifshitz, singularities lie behind a *universal horizon* . In the limiting case, signals travel along an incompressible aether which results in an infinitely fast speed of...

1302. Thermal Mediated Phase Transition in Gauss-Bonnet Gravity

Saoussen MBAREK (University of Waterloo)

14/06/2016, 09:15

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

In this work, we will be introducing so called "thermalons"and studying them in 5 dimentional Gauss-Bonnet Gravity. Thermalons can mediate phase transitions between different vacua in higher curvature gravity, potentially changing the asymptotic structure of the spacetime. Treating the cosmological constant as a dynamical parameter, we study these phase transitions in the context of extended...

1081. Numerically Obtaining the Black Hole Universality Class

Wilson Brenna (University of Waterloo)

14/06/2016, 09:30

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

I will discuss methods to find and extract critical exponents from numerical black holes. This procedure is nontrivial because numerically we compute only the temperature and entropy; assumptions will be made about the complete thermodynamical description via a First Law and Smarr Relation, and tools such as Padé Approximants will be examined. This procedure will be quite general, allowing for...

1145. Reentrant phase transitions and van der Waals behaviour for hairy black holes

Robie Hennigar

14/06/2016, 09:45

Theoretical Physics / Physique théorique (DTP-DPT)

Oral (Student, In Competition) / Orale (Étudiant(e), inscrit à la compétition)

The thermodynamics of black holes has remained a subject of interest for more than 40 years. Recently attention has been devoted to the thermodynamics of black holes in extended phase space where the cosmological constant is treated as a thermodynamic variable with the interpretation of pressure. Within this framework, Kubiznak and Mann demonstrated that the charged anti de Sitter black hole...