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The radial BAO scale and Cosmic Shear, a new observable for Inhomogeneous Cosmologies
Juan Garcia-Bellido, Troels Haugboelle
As an alternative explanation of the dimming of distant supernovae it has recently been advocated that we live in a special place in the Universe near the centre of a large spheric…
Looking the void in the eyes - the kSZ effect in LTB models
Juan Garcia-Bellido, Troels Haugboelle
As an alternative explanation of the dimming of distant supernovae it has recently been advocated that we live in a special place in the Universe near the centre of a large void de…
Confronting Lemaitre-Tolman-Bondi models with Observational Cosmology
Juan Garcia-Bellido, Troels Haugboelle
The possibility that we live in a special place in the universe, close to the centre of a large void, seems an appealing alternative to the prevailing interpretation of the acceler…
A stochastic background of gravitational waves from hybrid preheating
Juan Garcia-Bellido, Daniel G. Figueroa
The process of reheating the universe after hybrid inflation is extremely violent. It proceeds through the nucleation and subsequent collision of large concentrations of energy den…
Squeezing the window on isocurvature modes with the Lyman-alpha forest
Maria Beltran, Juan Garcia-Bellido, Julien Lesgourgues +1
Various recent studies proved that cosmological models with a significant contribution from cold dark matter isocurvature perturbations are still compatible with most recent data o…
Bayesian model selection and isocurvature perturbations
Maria Beltran, Juan Garcia-Bellido, Julien Lesgourgues +2
Present cosmological data are well explained assuming purely adiabatic perturbations, but an admixture of isocurvature perturbations is also permitted. We use a Bayesian framework…