A general approach for testing non-cold dark matter at small cosmological scales

A general approach for testing non-cold dark matter at small cosmological scales

We present a general approach for modelling the small-scale suppression in the linear matter power spectrum induced by the presence of non-cold dark matter. We show that the new parametrisation accurately describes a large variety of non-thermal scenarios, removing the need to individually test each...

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Veröffentlicht in:Journal of physics. Conference series 2018-01, Vol.956 (1), p.12005, Article 012005
1. Verfasser: Murgia, R
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Sprache:eng
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Astronomical models
Cold dark matter
Data analysis
Parameterization
Physics
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description We present a general approach for modelling the small-scale suppression in the linear matter power spectrum induced by the presence of non-cold dark matter. We show that the new parametrisation accurately describes a large variety of non-thermal scenarios, removing the need to individually test each of them. We discuss the first astrophysical constraints on its free parameters and we outline the next steps for pursuing a full statistical data analysis.
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subjects Astronomical models
Cold dark matter
Data analysis
Parameterization
Physics
title A general approach for testing non-cold dark matter at small cosmological scales
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