Ben Leather

@benleather.bsky.social

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Marie Sklodowska-Curie Postdoctoral fellow, University of Southampton. IG: @ben_leather Web: http://benjaminleather.com

Max Planck Institute for Gravitational Physics (Albert Einstein Institute)
A screenshot of the paper, "Quadratic Quasinormal Mode Dependence on Linear Mode Parity", in Physical Review Letters.
Photograph at the stage of Dr. Strangelove in the Bord Gais Theatre in Dublin.
A Penrose diagram showing hyperboloidal foliation, but with a mint green colour.
Penrose diagram for the Schwarzschild exterior spacetime region with minimal gauge hyperboloidal slices. The solid blue curves depict hyperboloidal time surfaces τ−constant extending between the black-hole horizon H+ at σ = 1 and future null infinity I+ as σ = 0.
A comparison of the Newtonian-normalised Detweiler redshift with the 21.5PN expression from Kavanagh et al. The redshift is plotted as a function of the gauge invariant radius, x = (MΩφ)2/3, hence the rightmost boundary of the plot is towards the central black hole horizon. We have labelled the innermost stable circular orbit (ISCO) at x = 1/6 to help illustrate this. Our (Newtonian-normalised) redshift data is shown by the top (blue) dots and the full 21.5PN expression is plotted as the solid (blue) curve. We subtract successive PN terms from the leading-order normalised redshift and compare these residuals to the residuals of the successive PN series.
A plot of the ℓ-mode contribution to the radial self-force, Fr,ℓ for the differing degrees of regularisation for a secondary on an orbit of rp/M=10. We show the results for the unregularised (red squares) and the mode-sum-regularised (blue triangles) radial self-force.
A plot of the conformal spin-0 Regge-Wheeler field through the compactified spacetime. An inset shows the decay of the spectral convergence of the Chebyshev coefficients of the solutions within each domain.
An artist's impression showing an evolution of a complicated extreme-mass-ratio inspiral around a Kerr black hole.
A screenshot of the title, author and abstract from the arXiv preprint of the paper.
Myself and my Dad at the 2023 Champions League Final.
A Penrose Diagram of a hyperboloidal foliation of Schwarzschild spacetime.
A portrait photo of me in Florence earlier this year.