Pith Number

pith:2DQZTAO3

pith:2025:2DQZTAO3RCX3U73UMJRC6F2FBG

not attested not anchored not stored refs pending

Weakened Inspirals I: High Mass Ratio Common Envelope Interactions in RGB Stars

Daniel Price, Jack Nibbs, Lionel Siess, Orsola De Marco, Ryosuke Hirai

Higher mass ratios in common envelope interactions with red giants produce wider post-interaction separations up to about 40 solar radii and significantly more stable inspirals once the mass ratio reaches or exceeds 1.

arxiv:2512.16225 v3 · 2025-12-18 · astro-ph.SR

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\usepackage{pith}
\pithnumber{2DQZTAO3RCX3U73UMJRC6F2FBG}

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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

Higher mass ratios lead to wider post-CE separations, with a maximum of approximately 40 Rsun. For q greater than or equal to 1 the inspiral becomes significantly more stable.

C2weakest assumption

The pre-CE mass transfer phase is not fully converged with respect to numerical resolution, and higher resolution simulations are expected to further increase its duration and stability.

C3one line summary

High mass ratio common envelope interactions with red giant stars yield wider post-interaction separations up to 40 solar radii and circumbinary disks from fallback, though still smaller than observed wide binaries.

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-06-03T01:05:08.434126Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0e19981db88afba7f7462622f174509b330b0b0d0b264f70f623302d3fae0ce

Aliases

arxiv: 2512.16225 · arxiv_version: 2512.16225v3 · doi: 10.48550/arxiv.2512.16225 · pith_short_12: 2DQZTAO3RCX3 · pith_short_16: 2DQZTAO3RCX3U73U · pith_short_8: 2DQZTAO3

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/2DQZTAO3RCX3U73UMJRC6F2FBG \
  | 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: d0e19981db88afba7f7462622f174509b330b0b0d0b264f70f623302d3fae0ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5c03d966984f98d378a455ae7b1e54dc4a6563cd0602a9f5b3439594aff20010",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-12-18T06:17:39Z",
    "title_canon_sha256": "080df1d0c29bc8d949278380f7b85d641826d1c2df7eae8d9828cc6e85f817f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.16225",
    "kind": "arxiv",
    "version": 3
  }
}