Pith Number

pith:4SDAISHT

pith:2026:4SDAISHTXR43B57URB2BHGPPWK

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Resizing the giants: How modelling adiabatic interiors impacts predicted planetary radii

Ravit Helled, Simon M\"uller

Numerical methods for adiabatic temperature profiles can change giant planet radii by up to 3.4 percent.

arxiv:2603.24779 v2 · 2026-03-25 · astro-ph.EP · astro-ph.IM

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\pithnumber{4SDAISHTXR43B57URB2BHGPPWK}

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Record completeness

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3 Author claim open · sign in to claim

4 Citations open

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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

The choice of numerical method significantly impacts the inferred interior structure and radius. Using the logarithmic temperature equation, central temperatures deviate by several thousand Kelvin and surface radii differ by up to 3.4%.

C2weakest assumption

That the planet is strictly one-dimensional, fully convective, and perfectly adiabatic with no composition gradients or non-adiabatic heat transport that would alter the temperature profile independently of the numerical method.

C3one line summary

Numerical treatment of the adiabatic gradient changes predicted giant-planet radii by up to 3.4 percent depending on the temperature-equation form and derivative method used.

Receipt and verification

First computed	2026-05-27T14:06:41.937757Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4860448f3bc79b0f7f488741399efb290f06f8d2c7cff629aa80238448ef9eb

Aliases

arxiv: 2603.24779 · arxiv_version: 2603.24779v2 · doi: 10.48550/arxiv.2603.24779 · pith_short_12: 4SDAISHTXR43 · pith_short_16: 4SDAISHTXR43B57U · pith_short_8: 4SDAISHT

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4SDAISHTXR43B57URB2BHGPPWK \
  | 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: e4860448f3bc79b0f7f488741399efb290f06f8d2c7cff629aa80238448ef9eb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "053810567e9efa05f05da621839e6266c2ebc73972b4fb5b2ed2583272a75e74",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2026-03-25T19:50:13Z",
    "title_canon_sha256": "4f25835d074975893105aa226cfbcb8b4a44c70edfc4531a731c950d61a4018a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2603.24779",
    "kind": "arxiv",
    "version": 2
  }
}