81 citations · 170 across the 7 of their papers we have counts for
8 papers
Statistics of large-scale structure from the transition probability of Lagrangian trajectories
Lawrence Dam
We describe a probabilistic approach to gravitational clustering. Working purely in configuration space, we show that the two-point function can be formulated in terms of a transit…
Non-conservation and time non-locality of biased tracers
Lawrence Dam
We study the effect of ongoing formation and merger on the assumed number conservation of biased tracers. Using a Lagrangian approach we present a model of the number density which…
Nonlinear Redshift-Space Distortions on the Full Sky
Lawrence Dam, Camille Bonvin
We derive an analytic expression for the two-point correlation function in redshift space which (i) is nonlinear; (ii) is valid on the full sky, i.e. the distant-observer limit is…
Testing the Cosmological Principle with CatWISE Quasars: A Bayesian Analysis of the Number-Count Dipole
Lawrence Dam, Geraint F. Lewis, Brendon J. Brewer
The Cosmological Principle, that the Universe is homogeneous and isotropic on sufficiently large scales, underpins the standard model of cosmology. However, a recent analysis of 1.…
Exploring the Redshift-Space Peculiar Velocity Field and its Power Spectrum
Lawrence Dam, Krzysztof Bolejko, Geraint F. Lewis
Redshift-space distortions (RSD) generically affect any spatially-dependent observable that is mapped using redshift information. The effect on the observed clustering of galaxies…
A probabilistic framework for cosmological inference of peculiar velocities
Lawrence Dam
We present a Bayesian hierarchical framework for a principled data analysis pipeline of peculiar velocity surveys, which makes explicit the inference problem of constraining cosmol…
Probing the independence within the dark sector in the fluid approximation
Lawrence Dam, Krzysztof Bolejko, Geraint F. Lewis
The standard model of cosmology is based on two unknown dark components that are uncoupled from each other. In this paper we investigate whether there is evidence for an interactio…
Apparent cosmic acceleration from type Ia supernovae
Lawrence H. Dam, Asta Heinesen, David L. Wiltshire
Parameters that quantify the acceleration of cosmic expansion are conventionally determined within the standard Friedmann-Lemaitre-Robertson-Walker (FLRW) model, which fixes spatia…