Pith Number

pith:6O3AGWCZ

pith:2026:6O3AGWCZ4R675EVOXZ7F2RBWPD

not attested not anchored not stored refs resolved

Binarity at LOw Metallicity (BLOeM): massive star variability revealed using a novel software tool for point-spread function fitting of TESS images

Ankur Kalita, Daniel Pauli, Dominic M. Bowman, Jan Henneco, Julia Bodensteiner, Laurent Mahy, Lee Patrick, Maude Gull, Micha{\l} Pawlak, Norbert Langer, Paul A. Crowther, Pieterjan J. Van Daele, Roey Ovadia, Tomer Shenar, Zehava Katabi

A PSF-fitting method extracts clean TESS light curves for 91 massive stars in the SMC, showing their stochastic low-frequency variability follows patterns similar to those in the Milky Way.

arxiv:2605.15757 v1 · 2026-05-15 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6O3AGWCZ4R675EVOXZ7F2RBWPD}

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

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

The morphology of stochastic low-frequency variability in SMC massive stars probes a star's location in the Hertzsprung-Russell diagram in a manner similar to Galactic massive stars, indicating that the underlying physical mechanism could be insensitive to metallicity.

C2weakest assumption

That the Lemons PSF-fitting procedure removes crowding contamination without introducing systematic artifacts that could mimic or distort the reported SLF variability patterns or binary signals (implicit in the comparison of Lemons versus SAP light curves and in the interpretation of SLF morphology).

C3one line summary

A PSF-fitting pipeline extracts variability light curves for 91 SMC massive stars and finds that stochastic low-frequency variability morphology tracks HR-diagram position independently of metallicity.

References

135 extracted · 135 resolved · 31 Pith anchors

[1] Galaxies on FIRE (Feedback In Realistic Environments): Stellar Feedback Explains Cosmologically Inefficient Star Formation 2073 · doi:10.1093/mnras/stu1738

[2] Handbook of CCD astronomy, 2nd ed., by S.B. Howell. Cambridge observing handbooks for research astronomers, Vol. 5 Cambridge, UK: Cambridge University Press, 2006 ISBN 0521852153 , date-added = 2006

[3] One size does not fit all: Evidence for a range of mixing efficiencies in stellar evolution calculations. , keywords =. doi:10.1051/0004-6361/202141080 , archivePrefix =. 2107.09075 , primaryClass = · doi:10.1051/0004-6361/202141080

[4] Numerical Simulations Confirm Wave-induced Shear Mixing in Stellar Interiors. , keywords =. doi:10.3847/2041-8213/ae09ae , archivePrefix =. 2509.18244 , primaryClass = 2041 · doi:10.3847/2041-8213/ae09ae

[5] arXiv , author =:2211.08347 , journal = · doi:10.1051/0004-6361/202243545

Formal links

1 machine-checked theorem link

Receipt and verification

First computed	2026-05-20T00:01:16.659494Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3b6035859e47dfe92aebe7e5d443678e54300bf94f091ba8386ec42ec5fb665

Aliases

arxiv: 2605.15757 · arxiv_version: 2605.15757v1 · doi: 10.48550/arxiv.2605.15757 · pith_short_12: 6O3AGWCZ4R67 · pith_short_16: 6O3AGWCZ4R675EVO · pith_short_8: 6O3AGWCZ

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/6O3AGWCZ4R675EVOXZ7F2RBWPD \
  | 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: f3b6035859e47dfe92aebe7e5d443678e54300bf94f091ba8386ec42ec5fb665

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07a04fc7ab242de42f5be929d02f933303f0d68b45338d0b6c23841861a21f7b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-15T09:17:41Z",
    "title_canon_sha256": "96f1d9130b2c5cf748cc6bc594a155e0268835c24d75b71eb4f03c2b766eba2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.15757",
    "kind": "arxiv",
    "version": 1
  }
}