Pith Number

pith:YJ4SGTQR

pith:2026:YJ4SGTQRNND664ZYDXW2ZEK4VY

not attested not anchored not stored refs resolved

From core to envelope: revealing the deep dynamics of stars with two convective zones

Allan Sacha Brun, Rafael A. Garc\'ia, Sylvain N. Breton

In F-type stars the convective core disrupts low-order high-degree g-modes while preserving others to the surface.

arxiv:2604.22651 v1 · 2026-04-24 · astro-ph.SR

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\usepackage{pith}
\pithnumber{YJ4SGTQRNND664ZYDXW2ZEK4VY}

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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

✓ 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

We show that the contribution of the core strongly affects the spectrum of excited g modes, with low-order high-degree modes unable to form due to their interaction with the turbulent convection of the core. Finally, by computing the disc-integrated signature of the modes, we are able to demonstrate that they preserve their integrity up to the top of the convective envelope.

C2weakest assumption

The numerical treatment of turbulent convection in the core and its coupling to g-mode propagation accurately represents real stellar physics without dominant numerical diffusion or missing physical ingredients such as rotation or magnetic fields.

C3one line summary

Global simulations of F-type stars show core convection suppresses low-order high-degree g-modes while others preserve their structure through the envelope, supporting potential detectability.

References

2 extracted · 2 resolved · 0 Pith anchors

[1] κr ¯ρcp∇ T+ ¯T +κ diff¯ρ¯T∇S+κ 0 ¯ρ¯T∇ ¯S # +2¯ρνdiff 1969

[2] 2000; Breton et al 2000

Receipt and verification

First computed	2026-06-03T14:05:25.021942Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c279234e116b47ef73381dedac915cae00d605d51e212fdb56e94ee5fd0d9d16

Aliases

arxiv: 2604.22651 · arxiv_version: 2604.22651v1 · doi: 10.48550/arxiv.2604.22651 · pith_short_12: YJ4SGTQRNND6 · pith_short_16: YJ4SGTQRNND664ZY · pith_short_8: YJ4SGTQR

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/YJ4SGTQRNND664ZYDXW2ZEK4VY \
  | 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: c279234e116b47ef73381dedac915cae00d605d51e212fdb56e94ee5fd0d9d16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62932bf40862e56e9b8bbbca0867aa714e89a1c9e84108370ba14a138409f404",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-04-24T15:23:58Z",
    "title_canon_sha256": "affba927afa63180dd31ab86a72b9ecba14dbc763d284dc49634994487fe0b9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.22651",
    "kind": "arxiv",
    "version": 1
  }
}