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Constraining Warm Dark Matter With Cosmic Shear Power Spectra
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We investigate potential constraints from cosmic shear on the dark matter particle mass, assuming all darkish matter is made up of mild thermal relic particles. Given the theoretical uncertainties concerned in making cosmological predictions in such warm darkish matter scenarios we use analytical suits to linear warm dark matter buy Wood Ranger Power Shears spectra and compare (i) the halo model using a mass function evaluated from these linear Wood Ranger Power Shears warranty spectra and (ii) an analytical match to the non-linear evolution of the linear Wood Ranger Power Shears order now spectra. We optimistically ignore the competing impact of baryons for this work. We discover method (ii) to be conservative in comparison with approach (i). We consider cosmological constraints using these methods, marginalising over four other cosmological parameters. Using the more conservative methodology we discover that a Euclid-like weak lensing survey together with constraints from the Planck cosmic microwave background mission primary anisotropies could obtain a decrease restrict on the particle mass of 2.5 keV.
Within the second half of the 20th century, two competing theories for the expansion of cosmological construction were proposed. In the cold dark matter (CDM) paradigm (Peebles (1982)
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