57 citations · 472 across the 20 of their papers we have counts for
10 papers · 1 filter
The Role of Self Interactions in the Cosmological Evolution of Warm Dark Matter
Rafael Ignacio Yunis, Carlos R. Argüelles, Diana López Nacir +3
In this work we present a summary of recent studies on the effects of elastic self interactions in the evolution of Warm Dark Matter models (WDM), focusing on structure formation a…
Pulsar timing array constraints on spin-2 ULDM
Juan Manuel Armaleo, Diana López Nacir, Federico R. Urban
Ultra-light Dark Matter (ULDM) models are suitable candidates for the cosmological Dark Matter that may leave characteristic imprints in many observables. Among other probes, signa…
Boltzmann hierarchies for self-interacting warm dark matter scenarios
Rafael Yunis, Carlos R. Argüelles, Diana López Nacir
We provide a general framework for self-interacting warm dark matter (WDM) in cosmological perturbations, by deriving from first principles a Boltzmann hierarchy which retains cert…
Vector Fuzzy Dark Matter, Fifth Forces, and Binary Pulsars
Diana López Nacir, Federico R. Urban
We study the secular effects that an oscillating background ultralight (fuzzy) cosmological vector field has on the dynamics of binary systems; such effects appear when the field a…
Failures of homogeneous and isotropic cosmologies in Extended Quasi-Dilaton Massive Gravity
Stefano Anselmi, Saurabh Kumar, Diana López Nacir +1
We analyze the Extended Quasi-Dilaton Massive Gravity model around a Friedmann-Lemaître-Robertson-Walker cosmological background. We present a careful stability analysis of asympto…
Extreme parameter sensitivity in quasidilaton massive gravity
Stefano Anselmi, Diana López Nacir, Glenn D. Starkman
We reanalyze the behavior of Friedmann-Lemaître-Robertson-Walker cosmologies in the recently proposed quasidilaton massive-gravity model, and discover that the background dynamics…
Detecting Primordial -Modes after Planck
Paolo Creminelli, Diana López Nacir, Marko Simonović +2
We update the forecasts for the measurement of the tensor-to-scalar ratio for various ground-based experiments (AdvACT, CLASS, Keck/BICEP3, Simons Array, SPT-3G), balloons (EBE…
Implications of the scalar tilt for the tensor-to-scalar ratio
Paolo Creminelli, Sergei Dubovsky, Diana López Nacir +4
We investigate the possible implications of the measured value of the scalar tilt for the tensor-to-scalar ratio in slow-roll, single-field inflationary models. The measu…
Inflation at its Endpoint
Paolo Creminelli, Diana López Nacir, Marko Simonović +2
In the simplest inflationary model , we provide a prediction accurate up to for the spectral index and the tensor-to-scalar ratio assuming instant…
Nonlinear effects of dark energy clustering beyond the acoustic scales
Stefano Anselmi, Diana López Nacir, Emiliano Sefusatti
We extend the resummation method of Anselmi & Pietroni (2012) to compute the total density power spectrum in models of quintessence characterized by a vanishing speed of sound. For…