Pith Number

pith:O2LCRIVQ

pith:2025:O2LCRIVQ6OH6HM5DJY3HRBSYYZ

not attested not anchored not stored refs pending

Fuzzy dark matter dynamical friction: stalling of globular clusters induced by dynamical heatings

Adrian Szpilfidel, Jo Bovy, Paola Di Matteo, Pierre Boldrini

Fuzzy dark matter dynamical friction stalls globular cluster sinking in dwarf galaxies over a Hubble time.

arxiv:2510.00927 v2 · 2025-10-01 · astro-ph.GA · astro-ph.CO

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\usepackage{pith}
\pithnumber{O2LCRIVQ6OH6HM5DJY3HRBSYYZ}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

FDM dynamical friction can stall the inspiral of GCs over a Hubble time in the dwarf-galaxy regime, thereby preventing their sinking into galactic centers and halting the canonical galactic cannibalism of clusters.

C2weakest assumption

The heating induced by FDM density granules is modeled accurately enough in the galpy implementation to suppress dynamical friction across the explored range of halo-to-GC mass ratios and boson masses, with the FDM-only case serving as a conservative lower bound on GC survival.

C3one line summary

Fuzzy dark matter suppresses dynamical friction on globular clusters via granule heating, stalling their orbital decay in dwarf galaxies over a Hubble time and producing bimodal radial distributions that encode the boson mass.

Receipt and verification

First computed	2026-06-19T16:10:31.528221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

769628a2b0f38fe3b3a34e36788658c664fa0032eb0f83170e36ef5c0e6162b1

Aliases

arxiv: 2510.00927 · arxiv_version: 2510.00927v2 · doi: 10.48550/arxiv.2510.00927 · pith_short_12: O2LCRIVQ6OH6 · pith_short_16: O2LCRIVQ6OH6HM5D · pith_short_8: O2LCRIVQ

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/O2LCRIVQ6OH6HM5DJY3HRBSYYZ \
  | 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: 769628a2b0f38fe3b3a34e36788658c664fa0032eb0f83170e36ef5c0e6162b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd92262576c64fb53d68577c97dd7170ee7bc1cae8d197fa1f65acb9be2ea676",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-10-01T14:07:49Z",
    "title_canon_sha256": "0fcd6ac9e165187beeab513391c6f5069f7cd4d162660e2c6644cae2465ff98c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2510.00927",
    "kind": "arxiv",
    "version": 2
  }
}