8 papers
Cosmic microwave background temperature cosmography
C. J. A. P. Martins
The temperature-redshift relation, , is a cornerstone of the standard cosmological model, but it is violated in many physically motivated extensions thereof, e.g. wh…
Beyond ÎCDM with the SKA Observatory -- I: Probing Gravity on Cosmological Scales
S. Camera, C. Addis, S. L. Guedezounme +26
General relativity (GR) is currently the best description of the gravitational interaction at our disposal and is one of the foundations of the concordance cosmological model. For…
Cosmologically Viable Solutions in Geometric Modified Gravity
P. A. G. Monteiro, C. J. A. P. Martins
The discovery of the accelerated expansion of the universe highlighted General Relativity's inability to naturally account for dark energy without invoking a finely tuned cosmologi…
Distinguishing Distance Duality breaking models using electromagnetic and gravitational waves measurements
Chiara De Leo, Matteo Martinelli, Rocco D'Agostino +2
Several assumptions at the foundation of the standard cosmological model have as a direct consequence a specific relation between cosmological distances, known as the distance dual…
Varying fundamental constants cosmography
C. J. A. P. Martins
Cosmography is a model-independent phenomenological approach to observational cosmology, relying on Taylor series expansions of physical quantities as a function of the cosmologica…
Validation of the ESPRESSO Wavelength Calibration Using Iodine Absorption Cell Spectra
Tobias M. Schmidt, Ansgar Reiners, Michael T. Murphy +3
High quality wavelength calibration is crucial for science cases like radial-velocity studies of exoplanets, the search for a possible variation of fundamental constants, and the r…