48 citations · 170 across the 10 of their papers we have counts for
10 papers
Non-linear Pairwise Velocities as a Cosmological Probe
Mariana Jaber, Antonela Taverna, Rasmus Strid +1
Peculiar velocities trace gravitational dynamics directly, complementing density-based clustering as wide-field spectroscopic surveys (DESI, Euclid, PFS) and kinetic Sunyaev-Zel'do…
Dynamics of pairwise motions in the fully non-linear regime in LCDM and Modified Gravity cosmologies
Mariana Jaber, Wojciech A. Hellwing, Jorge E. García-Farieta +2
In contrast to our understanding of density field tracers, the modelling of direct statistics pertaining to the cosmic velocity field remains open to significant opportunities for…
Hierarchical structure of the cosmic web and galaxy properties
Mariana Jaber, Marius Peper, Wojciech A. Hellwing +2
Voids possess a very complex internal structure and dynamics. Using -body simulations we study the hierarchical nature of sub-structures present in the cosmic web (CW). We use t…
Dark matter solution to the and tensions, and the integrated Sachs-Wolfe void anomaly
Krishna Naidoo, Mariana Jaber, Wojciech A. Hellwing +1
We consider a phenomenological model of dark matter with an equation-of-state that is negative and changing at late times. We show this couples the and tensions…
A single parameterization for dark energy and modified gravity models
Mariana Jaber, Gustavo Arciniega, Luisa G. Jaime +1
Perhaps the most explored hypothesis for the accelerated cosmic expansion rate arises in the context of extra fields or modifications to General Relativity. A prevalent approach is…
Cosmological signatures of a Rapid Diluted Energy Density
Axel de la Macorra, Dante V. Gomez-Navarro, Alejandro Aviles +3
We study the cosmological signatures of having extra energy density, , beyond the CDM model that dilutes rapidly, faster than radiation, at a scale factor with a c…
Imprint of a Steep Equation of State in the growth of structure
Mariana Jaber, Erick Almaraz, Axel de la Macorra
We study the cosmological properties of a dynamical of dark energy (DE) component determined by a Steep Equation of State (SEoS) . The SE…
Modified gravity for surveys
Luisa G. Jaime, Mariana Jaber, Celia Escamilla-Rivera
We present a new parameterization for the equation of state (EoS) , which can reproduce a -like evolution with a precision between over the numer…
Probing a Steep EoS for Dark Energy with latest observations
Mariana Jaber, Axel de la Macorra
We present a parametrization for the Dark Energy Equation of State "EoS" which has a rich structure, performing a transition at pivotal redshift between the present day value…
Constraints on Steep Equation of State for the Dark Energy using BAO
Mariana Jaber, Axel de la Macorra
We present a parametrization for the Dark Energy Equation of State "EoS" which has a rich structure. Our EoS has a transition at pivotal redshift between the present day valu…