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Probing modified gravity with galaxy-cluster-lensed gravitational-wave time delays: impact of systematic effects
Eleni Tsaprazi, Ettore Delpogetto, Federico Marulli +1
Strongly lensed gravitational waves provide exceptionally precise measurements of relative macroimage arrival times, making their time delays a promising time-domain probe of gravi…
Cluster gravitational redshifts: uncertainties and survey requirements
Eleni Tsaprazi, Giorgio F. Lesci, Federico Marulli +2
We investigate the impact of observational and theoretical uncertainties in cluster gravitational redshifts as a probe of modified gravity using an end-to-end forecasting pipeline.…
Beyond general relativity: probing gravity with gravitational redshifts
Eleni Tsaprazi, Giorgio F. Lesci, Federico Marulli +7
Despite the success of general relativity (GR), the unexplained nature of dark energy on cosmological scales leaves open the question of whether GR provides a complete description…