Browsing Physics and Astronomy by Subject "cosmological parameters"
Now showing items 1-3 of 3
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Assessing the Accuracy of Cosmological Parameters Estimated from Velocity – Density Comparisons
(University of Waterloo, 2024-01-10)A promising method for measuring the cosmological parameter combination fσ₈ is to compare observed peculiar velocities with peculiar velocities predicted from a galaxy density field using linear perturbation theory, known ... -
Optimizing Small-scale Redshift Space Distortion Measurements in eBOSS for Cosmological Inference
(University of Waterloo, 2023-09-21)Modern cosmological datasets have grown substantially in size and the precision of their measurements. While the improvement has had a beneficial impact on our understanding of the cosmological model, it requires equal ... -
Precision Cosmology Using Voids
(University of Waterloo, 2023-08-04)In the late 1990s, the discovery that the expansion rate of the Universe was accelerating was a decisive moment for cosmology. The last 25 years have seen the consolidation of this component, called dark energy, which ...