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Deconstructing Baryon Acoustic Oscillations: A Comparison of Methods
Anais Rassat, Adam Amara, Luca Amendola +6
The Baryon Acoustic Oscillations (BAOs) or baryon wiggles which are present in the galaxy power spectrum at scales 100-150Mpc/h are powerful features with which to constrain cosmol…
Cosmic Parallax: possibility of detecting anisotropic expansion of the universe by very accurate astrometry measurements
Claudia Quercellini, Miguel Quartin, Luca Amendola
Refined astrometry measurements allow us to detect large-scale deviations from isotropy through real-time observations of changes in the angular separation between sources at cosmi…
Mapping the galactic gravitational potential with peculiar acceleration
Claudia Quercellini, Luca Amendola, Amedeo Balbi
It has been suggested recently that the change in cosmological redshift (the Sandage test of expansion) could be observed in the next generation of large telescopes and ultra-stabl…
Dark Energy Phenomenology
Martin Kunz, Luca Amendola, Domenico Sapone
We discuss the phenomenology of the dark energy in first order perturbation theory, demonstrating that the dark energy cannot be fully constrained unless the dark matter is found,…
Mimicking general relativity in the solar system
Luca Amendola, Christos Charmousis, Stephen C. Davis
In order for a modified gravity model to be a candidate for cosmological dark energy it has to pass stringent local gravity experiments. We find that a Brans-Dicke (BD) theory with…