Pith Number

pith:CEYLU3TW

pith:2026:CEYLU3TWFB6F2ZJZGQRI3RBCG7

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Warm, not Fuzzy: Generalized Ultralight Dark Matter Limits from Milky Way Satellites

Andrew Benson, Ethan O. Nadler, M. Sten Delos, Mustafa A. Amin, Risa H. Wechsler, Vera Gluscevic

Milky Way satellite abundances set mass limits on ultralight dark matter that scale with the initial power spectrum peak wavenumber.

arxiv:2605.15371 v1 · 2026-05-14 · astro-ph.CO · hep-ph

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\usepackage{pith}
\pithnumber{CEYLU3TWFB6F2ZJZGQRI3RBCG7}

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Record completeness

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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Claims

C1strongest claim

Comparing these predictions with established constraints on a free-streaming cutoff in the linear matter power spectrum from the MW satellite population, we obtain m>6×10^{-18} eV (k_*/10^4 Mpc^{-1}) for k_*>10^4 Mpc^{-1} at 95% confidence. For smaller k_*, ... m>6×10^{-18} eV (k_*/10^4 Mpc^{-1})^2.

C2weakest assumption

That the free-streaming suppression scale k_fs and the Poisson enhancement from wave interference can be directly translated into an effective free-streaming cutoff that matches the functional form assumed in prior MW satellite abundance analyses without requiring new modeling of satellite formation or selection in the generalized power spectrum.

C3one line summary

Generalizes ultralight DM mass limits from MW satellite abundances to peaked power spectrum models, yielding m > 6e-18 eV scaled by k_* at 95% confidence for different k_* regimes.

References

39 extracted · 39 resolved · 0 Pith anchors

[1] 2014, JCAP, 10, 002 2014

[2] Amin, M. A. & Delos, M. S. 2025, arXiv e-prints, arXiv:2510.17977 2025

[3] Amin, M. A., Delos, M. S., & Mirbabayi, M. 2026, JCAP, 2026, 016 2026

[4] Amin, M. A., Delos, M. S., & Yang, K. 2025a, arXiv e-prints, arXiv:2510.15046

[5] A., May, S., & Mirbabayi, M 2025

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-20T00:00:55.046098Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1130ba6e76287c5d653934228dc42237f09126845d533c7311c15da1596267c0

Aliases

arxiv: 2605.15371 · arxiv_version: 2605.15371v1 · doi: 10.48550/arxiv.2605.15371 · pith_short_12: CEYLU3TWFB6F · pith_short_16: CEYLU3TWFB6F2ZJZ · pith_short_8: CEYLU3TW

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CEYLU3TWFB6F2ZJZGQRI3RBCG7 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1130ba6e76287c5d653934228dc42237f09126845d533c7311c15da1596267c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a502b0684c3009a37b2b106b7c344ca203cf2076ba4de726b0ec2e5a99f85dc8",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2026-05-14T19:53:04Z",
    "title_canon_sha256": "cc5ab50ad82a58fb43d5870502344476b5ef9669b4bdcf09b746b16d4e8f9b76"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15371",
    "kind": "arxiv",
    "version": 1
  }
}