299 citations · 823 across the 34 of their papers we have counts for
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Differential age observations and their constraining power in cosmology
Asta Heinesen
We derive the differential age signal valid for cosmic chronometers (passively evolving galaxies) in any space-time that satisfies the following assumptions: (i) The space-time has…
Exploring the rich geometrical information in cosmic drift signals with covariant cosmography
Asta Heinesen, Mikołaj Korzyński
Real-time measurements are becoming feasible in cosmology, where the next generation of telescopes will detect the temporal change of redshifts and sky positions of individual sour…
Redshift drift in a universe with structure III: Numerical relativity
Sofie Marie Koksbang, Asta Heinesen, Hayley J. Macpherson
Measurements of the cosmic redshift drift - the change in redshift of a source over time - will enable independent detection of cosmological expansion thanks to the immense precisi…
Splitting the spacetime: A systematic analysis of foliation dependence in cosmic averaging
Pierre Mourier, Asta Heinesen
It is a fundamental unsolved question in general relativity how to unambiguously characterize the effective collective dynamics of an ensemble of fluid elements sourcing the local…
Towards Cosmography of the Local Universe
Julian Adamek, Chris Clarkson, Ruth Durrer +3
Anisotropies in the distance-redshift relation of cosmological sources are expected due to large-scale inhomogeneities in the local Universe. When the observed sources are tracing…