Decaying Dark Matter Halo Abundance from a Revised Spherical Collapse Model

arXiv:2607.19244 · astro-ph.CO · Submitted 2026-07-21 · Read on arXiv

Thomas Montandon, Vivian Poulin, Oliver Hahn, Jozef Bucko, Aurel Schneider

astro-ph.CO

Submitted: 2026-07-21

Comments: 16 pages, 9 figures

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

Terminology

• Abundance — 10× in this paper · explained in 1 episode
• N-body simulations — 9× in this paper · explained in 2 episodes
• Trace — 5× in this paper · explained in 2 episodes
• Accuracy — 2× in this paper · explained in 1 episode
• Matter Power Spectrum — 2× in this paper · explained in 2 episodes
• Weak Lensing — 2× in this paper · explained in 2 episodes
• Baryonic Feedback — 1× in this paper · explained in 3 episodes
• Calibration — 1× in this paper · explained in 7 episodes
• Consistency — 1× in this paper · explained in 3 episodes
• Grounding — 1× in this paper · explained in 3 episodes

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• KiDS-Legacy: Consistency of cosmic shear measurements and joint cosmological constraints with external probes
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• A Step in Understanding the $S_8$ Tension
• The Sigma-8 Tension is a Drag

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