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Searching for quantum-gravity footprint around stellar-mass black holes
Luigi Foschini, Alberto Vecchiato, Alfio Bonanno
According to the asymptotically safe gravity, black holes may have characteristics different from those described according to general relativity if the running of the gravitationa…
On the principle of Astrometric Gravitational Wave Antenna
Mariateresa Crosta, Mario G. Lattanzi, Christophe Le Poncin-Lafitte +3
The direct detection of gravitational waves by ground-based optical interferometers has opened a new window in astronomy. Nevertheless, as these detectors are a combination of two…
The Erez-Rosen metric and the role of the quadrupole on light propagation
Donato Bini, Mariateresa Crosta, Fernando de Felice +2
The gravitational field of a static body with quadrupole moment is described by an exact solution found by Erez and Rosen. Here we investigate the role of the quadrupole in the mot…
Latest advances in an astrometric model based on the Time Transfer Functions formalism
Stefano Bertone, Alberto Vecchiato, Christophe Le Poncin-Lafitte +2
Given the extreme accuracy of modern space astrometry, a precise relativistic modeling of observations is required. Moreover, the availability of several models formulated in diffe…
Astrometric tests of General Relativity in the Solar System: mathematical and computational scenarios
Alberto Vecchiato, Mario Gai, Mario G. Lattanzi +3
We review the mathematical models available for relativistic astrometry, discussing the different approaches and their accuracies in the context of the modern experiments from spac…
Time Transfer functions as a way to validate light propagation solutions for space astrometry
Stefano Bertone, Olivier Minazzoli, Mariateresa Crosta +3
Given the extreme accuracy of modern space astrometry, a precise relativistic modeling of observations is required. Concerning light propagation, the standard procedure is the solu…