401 citations · 3.6k across the 126 of their papers we have counts for
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Repulsive dark matter from Hosotani mechanism
Philippe Brax, Patrick Valageas
We build an ultralight dark matter model with repulsive self-interactions, starting from a 5D action that only includes a gauge field and several massive and charged free fe…
Euclid preparation. Review of forecast constraints on dark energy and modified gravity
Euclid Collaboration, N. Frusciante, M. Martinelli +326
The Euclid mission has been designed to provide, as one of its main deliverables, information on the nature of the gravitational interaction, which determines the expansion of the…
Testing scalar dark matter clumps with Pulsar Timing Arrays
Philippe Brax, Patrick Valageas
Scalar dark matter is a viable alternative to particle dark matter models such as Weakly Interacting Massive Particles (WIMPS). This is particularly the case for scalars with a low…
3D Vortices and rotating solitons in ultralight dark matter
Ph. Brax, P. Valageas
We study the formation and the dynamics of vortex lines in rotating scalar dark matter halos, focusing on models with quartic repulsive self-interactions. In the nonrelativistic re…
Vortices and rotating solitons in ultralight dark matter
Philippe Brax, Patrick Valageas
The dynamics of ultralight dark matter with non-negligible self-interactions are determined by a nonlinear Schrödinger equation rather than by the Vlasov equation of collisionless…
Formation of solitons and their transitions in scalar-field dark matter models with a non-polynomial self-interaction potential
Raquel Galazo García, Philippe Brax, Patrick Valageas
We study the formation of solitons inside scalar-field dark matter halos with a non-polynomial self-interaction potential. We consider a self-interaction potential that is quartic…