Pith Number

pith:FJDJWRHV

pith:2026:FJDJWRHVJX4UTNW5RKALI2TMK2

not attested not anchored not stored refs resolved

Hidden oscillations in plain sight: identification of seismically unresolved red-giant asteroseismic binary candidates

Francisca Espinoza-Rojas, Jeong Yun Choi, Saskia Hekker

Blended oscillations from two red giants in one Kepler aperture produce asteroseismic masses and radii off by up to factors of three and two.

arxiv:2604.24476 v1 · 2026-04-27 · astro-ph.SR

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\usepackage{pith}
\pithnumber{FJDJWRHVJX4UTNW5RKALI2TMK2}

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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

We identified 6 seismically unresolved AB candidates whose PDS morphologies change noticeably across light curves extracted with different apertures. ... masses and radii for the 6 AB candidates differ by up to about 3 and 2 times relative to the individual stars, respectively.

C2weakest assumption

That changes in PDS morphology when using different apertures are caused by a second oscillating star rather than other instrumental or analysis effects, and that the selected neighbors within 20 arcsec are the source of the additional signal.

C3one line summary

Six red-giant asteroseismic binary candidates show blended oscillations that bias mass and radius estimates by factors of up to three.

References

4 extracted · 4 resolved · 1 Pith anchors

[1] The sensitivity and behaviour of the curvature in the \'echelle diagram of red-giant stars 2016 · arXiv:2603.16597

[2] Mid- dle: combined TPF, with the two custom apertures overplotted in the same colors as corresponding stars 2014

[3] for KIC 3122188 (TIC 137816135, where TIC is the TESS input catalog) with a cadence of 10 minutes in Sector 40, 41 and 54 (see Fig C.1(d)), and did not detect any oscillation signals higher than the N 2025

[4] KEP-A/B" columns present the results from the PDSs of KEPSEISMIC light curves for ABi-A/B (i=1-6), respectively. The 2019

Receipt and verification

First computed	2026-06-10T14:10:50.989091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a469b44f54df949b6dd8a80b46a6c568a7f410586e74f40f63211f3787fb37a

Aliases

arxiv: 2604.24476 · arxiv_version: 2604.24476v1 · doi: 10.48550/arxiv.2604.24476 · pith_short_12: FJDJWRHVJX4U · pith_short_16: FJDJWRHVJX4UTNW5 · pith_short_8: FJDJWRHV

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/FJDJWRHVJX4UTNW5RKALI2TMK2 \
  | 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: 2a469b44f54df949b6dd8a80b46a6c568a7f410586e74f40f63211f3787fb37a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abc8b217761dff368ef6e429c8bade5ce35e1303385550dcc3beb74b10e8fc6c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-04-27T13:45:05Z",
    "title_canon_sha256": "46ef44e16fc555c1bee7c8fddfe285ae5a96af96052e364b424263a1bbf90f9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.24476",
    "kind": "arxiv",
    "version": 1
  }
}