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Probing Galactic Dark Matter With SIM Observations of Tidal Tails
(2005)
The nature of the dark matter that composes 90 Galaxy remains a profound mystery. Astronomical observations can provide crucial insight on this fundamental issue by probing the large-scale spatial distribution of dark ...
Desarrollo de un crawler para la búsqueda de información delictiva en la Dark Web
Las características de anonimidad y privacidad de la Dark Web la hacen atractiva para la comisión de delitos. Las autoridades necesitan herramientas para localizar patrones delictivos en esta red. Existen diferentes ...
Binary pulsars as probes for spin-2 ultralight dark matter
(IOP Publishing, 2020-01)
Binary pulsars can be excellent probes of ultra-light dark matter. We consider the scenario where the latter is represented by a spin-2 field. The coherent oscillations of the dark matter field perturb the dynamics of ...
Challenging matter creation models in the phantom divide
(American Physical Society, 2020)
We perform a study both statistical and theoretical for cosmological models of matter creation and their ability to describe effective phantom models of dark energy. Such models are beyond the ΛCDM model since the resulting ...
Emergent Universe as an interaction in the dark sector
(World Scientific, 2017-09)
A cosmological scenario where dark matter interacts with a variable vacuum energy for a spatially flat Friedmann-Robertson-Walker (FRW) spacetime is proposed and analyzed to show that with a linear equation of state and a ...
Observational challenges in dark energy models
(Asociación Argentina de Astronomía, 2013-08)
Cosmological distances inferred from supernova Ia observations constitute the most direct and solid evidence for the recently detected accelerated expansion of the universe. In this contribution, we show some inconsistencies ...
Reconstruction of interacting dark energy models from parametrizations
(American Physical Soc, 2007-04-01)
Models with interacting dark energy can alleviate the cosmic coincidence problem by allowing dark matter and dark energy to evolve in a similar fashion. At a fundamental level, these models are specified by choosing a ...