The Effects of Linear Matter Power Spectrum Enhancement on Dark Matter Substructure

arXiv:2507.16889 · astro-ph.CO, astro-ph.GA · Submitted 2025-07-22 · Read on arXiv

astro-ph.CO, astro-ph.GA

Submitted: 2025-07-22

Updated: 2026-10-12

Comments: 11 pages, 9 figures; updated to published version. Data is available at https://zenodo.org/records/16915369. Note added: the model labeled m_WDM = 5 keV, k_0 = 41.8 Mpc^-1 should be labeled as m_WDM = 6 keV, k_0 = 52.0 Mpc^-1; see https://github.com/eonadler/COZMIC for details

Journal ref: ApJ, 993, 17 (2025)

DOI: 10.3847/1538-4357/ae073b

Code: https://github.com/eonadler/COZMIC

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Matter Power Spectrum — 2× in this paper · explained in 2 episodes

Sources

• Inflation: Theory and Observations
• Supermassive black holes from inflation constrained by dark matter substructure
• Snowmass2021 Cosmic Frontier White Paper: Dark Matter Physics from Halo Measurements
• Excess of substructure due to primordial black holes
• Probing the Fundamental Nature of Dark Matter with the Large Synoptic Survey Telescope
• Observations of Galaxies at $z\gtrsim10$ Allow to Test Cosmological Models with Features in the Initial Power Spectrum

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