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Department of Applied Mathematics and Theoretical Physics

I work mostly the field of "numerical relativity". The goal of much of my research is directed towards testing General Relativity (GR) in the strong field, dynamical regime.

Publications

A symmetric hyperbolic formulation of the vacuum Einstein equations in affine-null coordinates
JL Ripley
– Journal of Mathematical Physics
(2021)
62,
062501
Numerical computation of second-order vacuum perturbations of Kerr black holes
JL Ripley, N Loutrel, E Giorgi, F Pretorius
– Physical Review D
(2021)
103,
104018
Second-order perturbations of Kerr black holes: Formalism and reconstruction of the first-order metric
N Loutrel, JL Ripley, E Giorgi, F Pretorius
– Physical Review D
(2021)
103,
104017
Evolution of Einstein-scalar-Gauss-Bonnet gravity using a modified harmonic formulation
WE East, JL Ripley
– Physical Review D
(2021)
103,
044040
Dynamics of a ${\mathbb{Z}}_{2}$ symmetric EdGB gravity in spherical symmetry
JL Ripley, F Pretorius
– Classical and Quantum Gravity
(2020)
37,
155003
Scalarized black hole dynamics in Einstein-dilaton-Gauss-Bonnet gravity
JL Ripley, F Pretorius
– Physical Review D
(2020)
101,
044015
Excision and avoiding the use of boundary conditions in numerical relativity
JL Ripley
– Classical and Quantum Gravity
(2019)
36,
237001
Gravitational collapse in Einstein dilaton-Gauss-Bonnet gravity
JL Ripley, F Pretorius
– Classical and Quantum Gravity
(2019)
36,
134001
Hyperbolicity in spherical gravitational collapse in a Horndeski theory
JL Ripley, F Pretorius
– Physical Review D
(2019)
99,
084014
Black hole perturbation under a 2+2 decomposition in the action
JL Ripley, K Yagi
– Physical Review D
(2018)
97,
024009
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Research Group

Relativity and Gravitation

Room

BL.34

Telephone

01223 764292