Pulsar Timing Sensitivity to Dark Matter Substructure in the Presence of a Stochastic Gravitational-Wave Background

arXiv:2607.03533 · astro-ph.CO, hep-ph · Submitted 2026-07-03 · Read on arXiv

Abhiram Cherukupalli, Vincent S. H. Lee, Kim Berghaus, Kathryn M. Zurek

astro-ph.CO, hep-ph

Submitted: 2026-07-03

Comments: 50 pages, 7 figures

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

Terminology

• Benchmark — 17× in this paper · explained in 2 episodes
• Trace — 9× in this paper · explained in 2 episodes
• pulsar timing arrays — 9× in this paper · explained in 2 episodes
• Degeneracy — 7× in this paper · explained in 3 episodes
• Abundance — 3× in this paper · explained in 1 episode
• Karlsruhe Institute of Technology — 2× in this paper
• Square Kilometre Array — 2× in this paper
• Anisotropy — 1× in this paper · explained in 3 episodes
• Bayesian Framework — 1× in this paper · explained in 3 episodes
• Decoupling — 1× in this paper · explained in 2 episodes
• Generalization — 1× in this paper · explained in 13 episodes
• Matter Power Spectrum — 1× in this paper · explained in 2 episodes
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes

Sources

• Axion Miniclusters and Bose Stars
• Astrophysical Effects of Scalar Dark Matter Miniclusters
• Early-Universe Simulations of the Cosmological Axion
• First Simulations of Axion Minicluster Halos
• Simulations of Axion Minihalos
• The first WIMPy halos
• Probing Dark Matter Substructure with Pulsar Timing
• Prospects for Detecting Dark Matter Halo Substructure with Pulsar Timing
• Investigating dark matter substructure with pulsar timing: I. Constraints on ultracompact minihalos
• Pulsar timing can constrain primordial black holes in the LIGO mass window
• Detectability of Small-Scale Dark Matter Clumps with Pulsar Timing Arrays
• Pulsar Timing Probes of Primordial Black Holes and Subhalos
• Observability of Dark Matter Substructure with Pulsar Timing Correlations
• Probing Small-Scale Power Spectra with Pulsar Timing Arrays
• Bayesian Forecasts for Dark Matter Substructure Searches with Mock Pulsar Timing Data
• Astrophysical Observations of a Dark Matter-Baryon Fifth Force
• The NANOGrav 15-year Data Set: Search for Signals from New Physics
• Physics beyond the Standard Model with the DSA-2000
• The Nanohertz Gravitational Wave Astronomer
• A Practical Theorem on Gravitational Wave Backgrounds

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