Pith Number

pith:DNALTHKV

pith:2026:DNALTHKVQVVB7YAI4TZZAEEIZR

not attested not anchored not stored refs pending

The Tale of a Hungry Subgiant and Its Brown Dwarf: Interior Radiative Damping Dominates the Tidal Evolution of TOI-5882

Melinda Soares-Furtado, Richard H.D. Townsend, Ritvik Sai Narayan

Interior radiative damping drives much faster brown dwarf inspiral than equilibrium tide models predict for TOI-5882.

arxiv:2605.04141 v2 · 2026-05-05 · astro-ph.SR · astro-ph.EP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DNALTHKVQVVB7YAI4TZZAEEIZR}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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

interior radiative damping dominates the system's tidal evolution, with the classical equilibrium tidal model significantly underestimating the star's angular momentum evolution by several orders of magnitude. Consequently, our combined framework predicts a 2--6 fold reduction in the engulfment timescale, accelerating the companion's inspiral by roughly 25--110 Myr.

C2weakest assumption

That the linear tidal response computed by GYRE-tides, when coupled to MESA binary evolution, fully captures the dominant dissipation physics without significant nonlinear or convective effects for this subgiant-brown dwarf system.

C3one line summary

Radiative damping of internal gravity waves dominates tidal evolution in TOI-5882, shortening the brown dwarf's engulfment timescale by a factor of 2-6 relative to classical models.

Formal links

2 machine-checked theorem links

Cited by

1 paper in Pith

Dynamical constraints on planet engulfment as the origin of lithium enhancement in TOI-5882

Receipt and verification

First computed	2026-06-19T16:09:58.927248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1b40b99d55856a1fe008e4f3901088cc5586265c14f5cd3126c6919ba10ce7df

Aliases

arxiv: 2605.04141 · arxiv_version: 2605.04141v2 · doi: 10.48550/arxiv.2605.04141 · pith_short_12: DNALTHKVQVVB · pith_short_16: DNALTHKVQVVB7YAI · pith_short_8: DNALTHKV

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/DNALTHKVQVVB7YAI4TZZAEEIZR \
  | 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: 1b40b99d55856a1fe008e4f3901088cc5586265c14f5cd3126c6919ba10ce7df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e6c6f593a26e9381aa8eb5b22b3dc0c662b23f9c9f26da4cb07f4feff15cfab",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-05T18:00:00Z",
    "title_canon_sha256": "5452637c1fabf5a315ffe46a65ce4d20230af54da7288381a444ba7f345bd6b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.04141",
    "kind": "arxiv",
    "version": 2
  }
}