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Future Constraints on Dynamical Dark-Energy using Gravitational-Wave Standard Sirens
Minghui Du, Weiqiang Yang, Lixin Xu +2
The detection of gravitational waves (GW) by the LIGO and Virgo collaborations offers a whole new range of possible tests and opens up a new window which may shed light on the natu…
Screenings in Modified Gravity: a perturbative approach
Alejandro Aviles, Jorge L. Cervantes-Cota, David F. Mota
We present a formalism to study screening mechanisms in modified theories of gravity via perturbative methods in different cosmological scenarios. We consider Einstein frame posed…
Halo collapse: virialization by shear and rotation in dynamical dark-energy models. Effects on weak-lensing peaks
Francesco Pace, Carlo Schimd, David F. Mota +1
The evolution of the virial overdensity for CDM and seven dynamical dark-energy models is investigated in the extended spherical collapse model (SCM). Here the vir…
Cosmological constraints on parametrized interacting dark energy
R. von Marttens, L. Casarini, D. F. Mota +1
We reconsider the dynamics of the Universe in the presence of interactions in the cosmological dark sector. A class of interacting models is introduced via a real function $f\left(…
Probing modified gravity in cosmic filaments
Alex Ho, Max Gronke, Bridget Falck +1
Multiple modifications of general relativity (GR) have been proposed in the literature in order to understand the nature of the accelerated expansion of the Universe. However, thus…
Tale of stable interacting dark energy, observational signatures, and the tension
Weiqiang Yang, Supriya Pan, Eleonora Di Valentino +3
We investigate the observational consequences of a novel class of stable interacting dark energy (IDE) models, featuring interactions between dark matter (DM) and dark energy (DE).…