115 citations · 118 across the 14 of their papers we have counts for
23 papers
Which Saddles Contribute? The South-East Rule for Multidimensional Integrals
Inês Aniceto, Job Feldbrugge, Christopher J. Howls
In this paper, we introduce and demonstrate a simple geometric algorithm to determine which critical points, both complex as well as real, contribute to the asymptotic evaluation o…
Caustic Skeleton and the Local Cosmic Web: the Coma Cluster node and the Pisces-Perseus ridge
Amelie Read, Job Feldbrugge, Celine Boehm +2
We apply caustic skeleton theory to the Manticore-Local simulations, which are Bayesian constrained reconstructions of the Local Universe from the 2M++ galaxy catalogue, and extrac…
Galaxy Populations in the IllustrisTNG Caustic Skeleton
Benjamin Hertzsch, Job Feldbrugge, Rien van de Weygaert
The caustic skeleton is a parameter-free and mathematically rigorous formalism for tracing the hierarchical formation history of the multiscale cosmic web from the singularities in…
Resurgence and Hyperasymptotics in Wave Optics Astronomy
Job Feldbrugge, Samuel Crew, Ue-Li Pen
With the discovery of gravitational waves and fast radio bursts, wave optics has become increasingly relevant in astrophysics. This paper studies the behaviour of random gravitatio…
A universal approach to saddle-point methods in attosecond science
Anne Weber, Job Feldbrugge, Emilio Pisanty
Light-matter interactions within the strong-field regime, where intense laser fields can ionise a target via tunnelling, give rise to fascinating phenomena such as the generation o…
A New Recipe for Caustic Pancakes: On the Reality of Walls in the Cosmic Web
Benjamin Hertzsch, Job Feldbrugge, Maé Rodriguez +1
The caustic skeleton model is a mathematically rigorous framework for studying the formation history of the emerging cosmic web from the caustics in the underlying dark matter flow…