43 citations · 386 across the 32 of their papers we have counts for
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astro-ph.CO2021★ 7 cited
The effect of dark matter discreteness on light propagation
Sofie Marie Koksbang, Syksy Rasanen
Light propagation in cosmology is usually studied in the geometrical optics approximation which requires the spacetime curvature to be much smaller than the light wavenumber. Howev…
astro-ph.CO2021★ 10 cited
Understanding the Dyer-Roeder approximation as a consequence of local cancellations of projected shear and expansion rate fluctuations
S. M. Koksbang
It is shown with several concrete examples that the Dyer-Roeder approximation is valid in spacetimes which fulfill the condition that fluctuations in the expansion rate along a lig…
astro-ph.CO2021★ 42 cited
Searching for signals of inhomogeneity using multiple probes of the cosmic expansion rate H(z)
S. M. Koksbang
It is argued that cosmic chronometers yield estimates of the spatially averaged expansion rate even in a universe that is not well described by a global FLRW model - as long as the…