22 citations · 44 across the 6 of their papers we have counts for
6 papers
Supermassive black hole seeds from direct collapse of CDM-curvature peaks
Marco Galoppo, Marco Bruni, Tomohiro Harada
We study black hole (BH) formation from the nonlinear growth and collapse of primordial perturbations during the matter-dominated era. Modelling cold dark matter (CDM) as pressurel…
Dark sector interactions in the limit: velocity locking in pure momentum exchange models
Nathan Cruickshank, Robert Crittenden, Kazuya Koyama +1
Models of interacting dark energy (DE) and dark matter (DM) involving pure momentum exchange are a promising avenue for resolving cosmological tensions. However, the behaviour of t…
The frame-dragging vector potential on galaxy scales from Dark-Matter-only Newtonian -body simulations
William Beordo, Marco Bruni, Cristian Barrera-Hinojosa +1
Effects of General Relativity are usually neglected in the non-linear evolution of structures, where Newtonian -body simulations are traditionally employed. In the post-Friedman…
Forecasts for interacting dark energy with time-dependent momentum exchange
Nathan Cruickshank, Robert Crittenden, Kazuya Koyama +1
Models of interacting dark energy and dark matter offer a possible solution to cosmological tensions. In this work, we examine a pure momentum-exchange model with a time-dependent…
f(R) gravity on non-linear scales: The post-Friedmann expansion and the vector potential
Daniel B Thomas, Marco Bruni, Kazuya Koyama +2
Many modified gravity theories are under consideration in cosmology as the source of the accelerated expansion of the universe and linear perturbation theory, valid on the largest…
Relativistic weak lensing from a fully non-linear cosmological density field
Daniel B. Thomas, Marco Bruni, David Wands
In this paper we examine cosmological weak lensing on non-linear scales and show that there are Newtonian and relativistic contributions and that the latter can also be extracted f…