Pith Number

pith:SYRMOLPR

pith:2026:SYRMOLPRL336CGHH76QEJEXYQW

not attested not anchored not stored refs resolved

A Rare Population of Intermediate-mass Helium Stars Between Hot Subdwarfs and Wolf-Rayet Stars

Gui-Yu Wang, Jian-Guo He, Xiang-Dong Li, Xiao-jie Xu, Yong Shao, Yu-Dong Nie

Binary population synthesis predicts several thousand intermediate-mass helium stars in the Milky Way.

arxiv:2605.16760 v1 · 2026-05-16 · astro-ph.SR · astro-ph.HE

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\usepackage{pith}
\pithnumber{SYRMOLPRL336CGHH76QEJEXYQW}

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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 estimate that several thousand IMHeS exist in the Milky Way, with several hundred more in the Magellanic Clouds. The vast majority of IMHeS reside in binaries, with fewer than 10% appearing as single stars.

C2weakest assumption

The binary population synthesis framework and its standard prescriptions for mass transfer stability and common-envelope ejection accurately represent the physics governing stars in the 2-8 solar mass range across metallicities.

C3one line summary

Binary population synthesis predicts several thousand intermediate-mass helium stars in the Milky Way, mostly in binaries, with metallicity and common-envelope ejection efficiency as the dominant shaping factors.

References

83 extracted · 83 resolved · 1 Pith anchors

[1] Observation of Gravitational Waves from the Coalescence of a 2.5–4.5 M ⊙ Compact Object and a Neutron Star.Astrophys 2024 · doi:10.3847/2041-8213/ad5beb

[2] Belczynski, K., Bulik, T., Fryer, C. L., et al. 2010, On the Maximum Mass of Stellar Black Holes, ApJ, 714, 1217, doi: 10.1088/0004-637X/714/2/1217 2010 · doi:10.1088/0004-637x/714/2/1217

[3] R., & G¨ otberg, Y 2026 · doi:10.1088/1538-3873/ae3a19

[4] Breddels, M. A., & Veljanoski, J. 2018, Vaex: big data exploration in the era of Gaia, A&A, 618, A13, doi: 10.1051/0004-6361/201732493 2018 · doi:10.1051/0004-6361/201732493

[5] Brown, G. E. 1995, Neutron Star Accretion and Binary Pulsar Formation, ApJ, 440, 270, doi: 10.1086/175268 1995 · doi:10.1086/175268

Formal links

1 machine-checked theorem link

Receipt and verification

First computed	2026-05-20T00:03:20.379987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9622c72df15ef7e118e7ffa04492f885bddcd751d490f9922c588c743343e153

Aliases

arxiv: 2605.16760 · arxiv_version: 2605.16760v1 · doi: 10.48550/arxiv.2605.16760 · pith_short_12: SYRMOLPRL336 · pith_short_16: SYRMOLPRL336CGHH · pith_short_8: SYRMOLPR

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/SYRMOLPRL336CGHH76QEJEXYQW \
  | 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: 9622c72df15ef7e118e7ffa04492f885bddcd751d490f9922c588c743343e153

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d0500b8b2ddba3e70ba470afee9288f6bb5ad7efbaae2144b2b4ad8be510adf",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-16T02:18:25Z",
    "title_canon_sha256": "c6dafd43577b5a7c4095cfe27190ae039e110c12612bcfb056449385025c1122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16760",
    "kind": "arxiv",
    "version": 1
  }
}