Yizhou Liu
The mass accretion history of dark matter haloes down to Earth mass
Liu, Yizhou; Gao, Liang; Bose, Sownak; Frenk, Carlos S; Jenkins, Adrian; Springel, Volker; Wang, Jie; White, Simon D M; Zheng, Haonan
Authors
Liang Gao
Dr Sownak Bose sownak.bose@durham.ac.uk
UKRI Future Leaders Fellowship
Professor Carlos Frenk c.s.frenk@durham.ac.uk
Professor
Professor Adrian Jenkins a.r.jenkins@durham.ac.uk
Professor
Volker Springel
Jie Wang
Simon D M White
Haonan Zheng
Abstract
We take advantage of the unprecedented dynamical range provided by the ‘Cosmic-Zoom’ project to study the mass accretion history (MAH) of present-day dark matter haloes o v er the entire mass range present in the Lambda cold dark matter paradigm when the dark matter is made of weakly interacting massive particles of mass 100 GeV. In particular, we complement previous studies by exploring the MAHs of haloes with mass from 10 8 h −1 M down to Earth mass, 10 −6 h −1 M . The formation redshift of low-mass haloes anticorrelates weakly with mass, peaking at z = 3 for haloes of mass 10 −4 h −1 M . Even lower masses are affected by the free-streaming cut-off in the primordial spectrum of density fluctuations and form at lower redshift. We compare MAHs in our simulations with predictions from two analytical models based on the extended Press–Schechter theory (EPS), and three empirical models derived by fitting and extrapolating either results from cosmological N -body simulations or Monte Carlo realizations of halo growth. All models fit our simulations reasonably well o v er the mass range for which they were calibrated. While the empirical models match better for more massive haloes, M > 10 10 h −1 M , the analytical models do better when extrapolated down to Earth mass. At the higher masses, we explore the correlation between local environment density and MAH, finding that biases are relatively weak, with typical MAHs for haloes in extremely low-density and in typical regions differing by less than 20 per cent at high redshift. If this result can be extrapolated to lower halo masses, we conclude that EPS theory predicts the hierarchical build up of dark matter haloes quite well o v er the entire halo mass range.
Citation
Liu, Y., Gao, L., Bose, S., Frenk, C. S., Jenkins, A., Springel, V., Wang, J., White, S. D. M., & Zheng, H. (2023). The mass accretion history of dark matter haloes down to Earth mass. Monthly Notices of the Royal Astronomical Society, 527(4), 11740-11750. https://doi.org/10.1093/mnras/stae003
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 20, 2023 |
Online Publication Date | Jan 4, 2024 |
Publication Date | Dec 23, 2023 |
Deposit Date | Mar 1, 2024 |
Publicly Available Date | Mar 1, 2024 |
Journal | Monthly Notices of the Royal Astronomical Society |
Print ISSN | 0035-8711 |
Electronic ISSN | 1365-2966 |
Publisher | Royal Astronomical Society |
Peer Reviewed | Peer Reviewed |
Volume | 527 |
Issue | 4 |
Pages | 11740-11750 |
DOI | https://doi.org/10.1093/mnras/stae003 |
Keywords | Space and Planetary Science; Astronomy and Astrophysics |
Public URL | https://durham-repository.worktribe.com/output/2291556 |
Files
Published Journal Article
(2.1 Mb)
PDF
Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
You might also like
Evolution of cosmic filaments in the MTNG simulation
(2024)
Journal Article
The MillenniumTNG Project: Intrinsic alignments of galaxies and halos
(2023)
Journal Article
Downloadable Citations
About Durham Research Online (DRO)
Administrator e-mail: dro.admin@durham.ac.uk
This application uses the following open-source libraries:
SheetJS Community Edition
Apache License Version 2.0 (http://www.apache.org/licenses/)
PDF.js
Apache License Version 2.0 (http://www.apache.org/licenses/)
Font Awesome
SIL OFL 1.1 (http://scripts.sil.org/OFL)
MIT License (http://opensource.org/licenses/mit-license.html)
CC BY 3.0 ( http://creativecommons.org/licenses/by/3.0/)
Powered by Worktribe © 2024
Advanced Search