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Towards accurate rescaling of a halo mass function

Yankelevich, V and Pilipenko, S (2018) Towards accurate rescaling of a halo mass function. Open Astronomy, 27 (1). pp. 150-156. ISSN 2543-6376

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Abstract

We investigate the precision within which a simulated dark matter halo mass function can be rescaled to a different set of cosmological parameters. Our tests show that the accuracy almost linearly depends on the difference of the cosmological parameters and amounts to few percent in the case of WMAP5 and PLANCK parameters. The rescaling thus allows us to obtain a mass function with better precision than the one given by the Sheth-Mo-Tormen approximation and even more modern fits currently used in the literature.

Item Type: Article
Uncontrolled Keywords: Science & Technology; Physical Sciences; Astronomy & Astrophysics; dark matter simulations; cosmological simulations; LARGE-SCALE STRUCTURE; HIERARCHICAL-MODELS; GALAXY FORMATION; MERGER RATES; DARK; EVOLUTION; CLUSTERS; FLUCTUATIONS; SIMULATION; COSMOLOGY
Subjects: Q Science > QB Astronomy
Q Science > QC Physics
Divisions: Astrophysics Research Institute
Publisher: De Gruyter
Related URLs:
Date Deposited: 06 May 2020 11:37
Last Modified: 06 May 2020 11:45
DOI or Identification number: 10.1515/astro-2018-0021
URI: http://researchonline.ljmu.ac.uk/id/eprint/12893

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