Matteo Leo
A new smooth-k space filter approach to calculate halo abundances
Leo, Matteo; Baugh, Carlton M.; Li, Baojiu; Pascoli, Silvia
Authors
Professor Carlton Baugh c.m.baugh@durham.ac.uk
Professor
Professor Baojiu Li baojiu.li@durham.ac.uk
Professor
Professor Silvia Pascoli silvia.pascoli@durham.ac.uk
Visiting Professor
Abstract
We propose a new filter, a smooth-k space filter, to use in the Press-Schechter approach to model the dark matter halo mass function which overcomes shortcomings of other filters. We test this against the mass function measured in N-body simulations. We find that the commonly used sharp-k filter fails to reproduce the behaviour of the halo mass function at low masses measured from simulations of models with a sharp truncation in the linear power spectrum. We show that the predictions with our new filter agree with the simulation results over a wider range of halo masses for both damped and undamped power spectra than is the case with the sharp-k and real-space top-hat filters.
Citation
Leo, M., Baugh, C. M., Li, B., & Pascoli, S. (2018). A new smooth-k space filter approach to calculate halo abundances. Journal of Cosmology and Astroparticle Physics, 2018(04), Article 010. https://doi.org/10.1088/1475-7516/2018/04/010
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 23, 2018 |
Online Publication Date | Apr 3, 2018 |
Publication Date | Apr 3, 2018 |
Deposit Date | Apr 19, 2018 |
Publicly Available Date | Apr 3, 2019 |
Journal | Journal of Cosmology and Astroparticle Physics |
Electronic ISSN | 1475-7516 |
Publisher | IOP Publishing |
Peer Reviewed | Peer Reviewed |
Volume | 2018 |
Issue | 04 |
Article Number | 010 |
DOI | https://doi.org/10.1088/1475-7516/2018/04/010 |
Public URL | https://durham-repository.worktribe.com/output/1360800 |
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Copyright Statement
This is an author-created, un-copyedited version of an article accepted for publication/published in Journal of Cosmology and Astroparticle Physics. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at https://doi.org/10.1088/1475-7516/2018/04/010
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