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pro vyhledávání: '"Mpetha, Charlie T."'
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 532, Issue 2, August 2024, Pages 2521-2533
Galaxy cluster abundance measurements provide a classic test of cosmology. They are most sensitive to the evolved amplitude of fluctuations, usually expressed as $S_8 = \sigma_8\sqrt{\Omega_m/0.3}$. Thus, abundance constraints exhibit a strong degene
Externí odkaz:
http://arxiv.org/abs/2407.01661
Cosmological parameters such as $\Omega_{\rm{M}}$ and $\sigma_{8}$ can be measured indirectly using various methods, including galaxy cluster abundance and cosmic shear. These measurements constrain the composite parameter $S_{8}$, leading to degener
Externí odkaz:
http://arxiv.org/abs/2406.17849
Publikováno v:
Phys. Rev. D, Vol. 110, No. 2, 023502 (2024)
Gravitational waves from binary mergers at cosmological distances will experience weak lensing by large scale structure. This causes a (de-)magnification, $\mu$, of the wave amplitude, and a degenerate modification to the inferred luminosity distance
Externí odkaz:
http://arxiv.org/abs/2402.19476
Publikováno v:
Phys.Rev.D 107 (2023) 103518
With planned space-based and 3rd generation ground-based gravitational wave detectors (LISA, Einstein Telescope, Cosmic Explorer), and proposed DeciHz detectors (DECIGO, Big Bang Observer), it is timely to explore statistical cosmological tests that
Externí odkaz:
http://arxiv.org/abs/2208.05959
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