From c402f9d89369d4e900872016e3b4f55ecf0eb512 Mon Sep 17 00:00:00 2001 From: Ivey Castleton Date: Thu, 14 Aug 2025 11:59:29 +0000 Subject: [PATCH] Add 'Constraining Warm Dark Matter With Cosmic Shear Power Spectra' --- ...raining-Warm-Dark-Matter-With-Cosmic-Shear-Power-Spectra.md | 3 +++ 1 file changed, 3 insertions(+) create mode 100644 Constraining-Warm-Dark-Matter-With-Cosmic-Shear-Power-Spectra.md diff --git a/Constraining-Warm-Dark-Matter-With-Cosmic-Shear-Power-Spectra.md b/Constraining-Warm-Dark-Matter-With-Cosmic-Shear-Power-Spectra.md new file mode 100644 index 0000000..ee0f6e2 --- /dev/null +++ b/Constraining-Warm-Dark-Matter-With-Cosmic-Shear-Power-Spectra.md @@ -0,0 +1,3 @@ +
We examine potential constraints from cosmic shear on the darkish matter particle mass, assuming all dark matter is made up of gentle thermal relic particles. Given the theoretical uncertainties involved in making cosmological predictions in such warm darkish matter scenarios we use analytical suits to linear heat darkish matter power spectra and evaluate (i) the halo mannequin using a mass operate evaluated from these linear power spectra and (ii) an analytical fit to the non-linear evolution of the linear power spectra. We optimistically ignore the competing effect of baryons for this work. We find method (ii) to be conservative compared to method (i). We evaluate cosmological constraints utilizing these methods, marginalising over four other cosmological parameters. Using the more conservative method we find that a Euclid-like weak lensing survey together with constraints from the Planck cosmic microwave background mission main anisotropies could obtain a lower limit on the particle mass of 2.5 keV.
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In the second half of the 20th century, [Wood Ranger Power Shears official site](http://corporate.elicitthoughts.com/index.php?title=User:LenardHite673) two competing theories for the growth of cosmological structure had been proposed. In the chilly darkish matter (CDM) paradigm (Peebles (1982) \ No newline at end of file