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Open Astronomy

formerly Baltic Astronomy

Editor-in-Chief: Barbuy, Beatriz


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2543-6376
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Volume 27, Issue 1

Issues

Towards accurate rescaling of a halo mass function

Victoria Yankelevich
  • Corresponding author
  • Argelander Institut für Astronomie der Universität Bonn, AufdemHügel 71, D-53121 Bonn, Germany
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
/ Sergey V. Pilipenko
  • Astro Space Center of Lebedev Physical Institute of Russian Academy of Sciences,Profsojuznaja st. 84/32, 117997 Moscow, Russian Federation
  • Email
  • Other articles by this author:
  • De Gruyter OnlineGoogle Scholar
Published Online: 2018-07-05 | DOI: https://doi.org/10.1515/astro-2018-0021

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.

Keywords : dark matter simulations; cosmological simulations

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About the article

Received: 2017-10-17

Accepted: 2018-04-30

Published Online: 2018-07-05


Citation Information: Open Astronomy, Volume 27, Issue 1, Pages 150–156, ISSN (Online) 2543-6376, DOI: https://doi.org/10.1515/astro-2018-0021.

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© 2018 Victoria Yankelevich and Sergey V. Pilipenko. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. BY-NC-ND 4.0

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