Welcome to the Gravity and Cosmology Group.
Emeritus professors
Research students
Supervisor: Chris Stevens泭(many of the below are co-supervised by Prof. J繹rg Frauendiener, University of Otago)
- Jesse Satherley, Ph.D., "Astrophysical implications of non-linear gravitational and electromagnetic scattering" (2024-)
- Breanna Camden, MSc., "The Physical interpretation of the Newman-Penrose constants and Newman's H-space", (2024-)
- Lachlan Campion, MSc. "The generalised conformal field equations in the presence of trace-free matter fields" , (2024-)
- Joseph Galinski, MSc. "Angular momentum in general relativity", (2024-)
- Jonathan Brook, Math. Phys. Hons, "Identifying singularities in General Relativity", (2024-)
- Tanmayee Boddu, Math. Phys. Hons, "Global linearised gravitational wave scattering in an expanding universe", (2024-)
- Merlyn Barrer, MMathSci, "Constructing initial data on past null infinity" (2023-)
- Areeba Merriam, Ph.D., "A numerical implementation of the Friedrich-Nagy gauge" (2023-)
- Sebenele Thwala, Ph.D., "Scattering of gravitational waves in asymptotically flat space-times" (2023-)
Supervisor: David Wiltshire
- Marco Galoppo
- Christopher Harvey-Hawes
- Morag Hills
- Zachary Lane
- Michael Williams
- Manon Van Zyl
- Tegan Gould
Completed after 2022 (Chris Stevens):
- Ollie Markwell, MSc., "Numerically Investigating The Conformal Field Equations Near Spatial Infinity" (2024)
- Jack Zidich, MSc., "Toward a numerical implementation of Cauchy-characteristic matching" (2024)
- Breanna Camden, Math. Phys. Hons, "Colliding non-linear gravitational and electromagnetic plane waves in plane symmetry" (2023)
- Lachlan Campion, Math. Phys. Hons, "Conformal geodesics and the conformal Gauss gauge" (2023)
- Jack Aimer, MMathSci, "Quasinormal modes of black holes" (2023)
- Alex Goodenbour, MSc., "Covariant charges on the null boundary of space-time" Co-supervised by David Wiltshire (2022)
Recent Publications
- Frauendiener J., Goodenbour A. and Stevens C.泭(2024)泭The non-linear perturbation of a black hole by gravitational waves. III. NewmanPenrose constants.泭Classical and Quantum Gravity 41(6) .
- Frauendiener J. and泭Stevens C.泭(2023)泭The non-linear perturbation of a black hole by gravitational waves. II. Quasinormal modes and the compactification problem.泭Classical and Quantum Gravity 40(12)泭.
- Stevens C.泭and泭Markwell O.泭(2023)泭Toward a framework for conformal cyclic cosmology.泭Bulletin on General Relativity and Gravitation泭.
Preprints
- Zachary G. Lane,泭Antonia Seifert,泭Ryan Ridden-Harper,泭Jenny Wagner,泭David L. Wiltshire (2023) Cosmological foundations revisited with Pantheon+泭.泭泭
- Christopher Harvey-Hawes, David L. Wiltshire (2024) Revisiting the effect of lens mass models in cosmological applications of strong gravitational lensing泭.
- Michael J. Williams, Hayley J. Macpherson, David L. Wiltshire, and Chris Stevens泭(2024) First investigation of void statistics in numerical relativity simulations泭.
- David L. Wiltshire (2024) Solution to the cosmological constant problem .
- Leon Escobar-Diaz and Chris Stevens (2024) Approximations of the quasi-local Bartnik mass in general relativity .泭
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News, events and seminars
2 November 2023:泭David Wiltshire and Chris Stevens have secured a total of $1.3 million in funding over three years through a standard and fast-start Marsden grant respectively. David's project is on "Changing the face of the Universe: Cosmological simulations from first principles in general relativity" and Chris' is on "Shedding new light on fundamental physics through the scattering of gravitational waves".