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On Robustness in Cosmological Simulations

Gueguen, Marie (2019) On Robustness in Cosmological Simulations. [Preprint]

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The Cold Dark Matter model faces many controversies at small scales, as simulations fail to reproduce the observed properties of dark matter (DM) haloes. Since rival DM models differ on their predictions about the structure of DM haloes, understanding their mass distribution is crucial for determining the nature of dark matter. However, only numerical approaches to determining what a hypothesis implies for the mass distribution are possible. Hence, simulations are a crucial part of evaluating DM rival models, as is assessing their reliability. I argue that robustness analysis is not a sufficient criterion for the trustworthiness of cosmological simulations.

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Item Type: Preprint
Keywords: Philosophy of Cosmology, Simulations, Robustness, Convergence Studies, Dark Matter
Subjects: Specific Sciences > Physics > Astrophysics
Specific Sciences > Physics > Cosmology
Depositing User: Dr Marie Gueguen
Date Deposited: 31 Oct 2019 06:00
Last Modified: 31 Oct 2019 06:00
Item ID: 16600
Subjects: Specific Sciences > Physics > Astrophysics
Specific Sciences > Physics > Cosmology
Date: 28 October 2019

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