Pith Number

pith:2QG3F4CW

pith:2026:2QG3F4CWCI3EZGD3W25NAV3WE4

not attested not anchored not stored refs resolved

SN 2023dbc in M108: Optical and Near-Infrared Observations of a Highly-Obscured, Moderately Energetic Stripped-Envelope Supernova

Akari Kumano, Avinash Singh, Devendra Kumar Sahu, G. C. Anupama, Hrishav Das, Masayuki Yamanaka, Takahiro Nagayama

SN 2023dbc originated from an aspherical explosion with partial core fallback from a 15 solar mass binary progenitor that retained its helium envelope.

arxiv:2605.16916 v1 · 2026-05-16 · astro-ph.HE

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\usepackage{pith}
\pithnumber{2QG3F4CWCI3EZGD3W25NAV3WE4}

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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 conclude that SN 2023dbc originated from an aspherical explosion with partial core fallback, arising from a progenitor (M_ini ≃ 15 M_⊙) that had retained its helium envelope within a binary system.

C2weakest assumption

The two-component model applied to the light-curve timescale and velocity data accurately captures a steep outer density profile versus dense inner core, and that this structure directly implies ejecta asphericity rather than alternative explanations such as viewing-angle effects or incomplete line identification.

C3one line summary

SN 2023dbc is a moderately energetic, highly obscured Type Ib supernova with estimated kinetic energy 4.1e51 erg, ejecta mass 2.3 solar masses, and nickel mass 0.038 solar masses, consistent with an aspherical explosion and partial fallback from a 15 solar mass binary progenitor that retained helium

References

90 extracted · 90 resolved · 1 Pith anchors

[1] Afsariardchi, N., Drout, M. R., Khatami, D. K., et al. 2021, ApJ, 918, 89 2021

[2] P., & James, P 2008

[3] Aramyan, L. S., Hakobyan, A. A., Petrosian, A. R., et al. 2016, MNRAS, 459, 3130 2016

[4] Arnett, W. D. 1982, ApJ, 253, 785 1982

[5] Bellm, E. C., Kulkarni, S. R., Graham, M. J., et al. 2019, PASP, 131, 018002 2019

Formal links

1 machine-checked theorem link

Receipt and verification

First computed	2026-05-20T00:03:30.028891Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d40db2f05612364c987bb6bad057762730c76281982b338eb02954a90e8f686c

Aliases

arxiv: 2605.16916 · arxiv_version: 2605.16916v1 · doi: 10.48550/arxiv.2605.16916 · pith_short_12: 2QG3F4CWCI3E · pith_short_16: 2QG3F4CWCI3EZGD3 · pith_short_8: 2QG3F4CW

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/2QG3F4CWCI3EZGD3W25NAV3WE4 \
  | 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: d40db2f05612364c987bb6bad057762730c76281982b338eb02954a90e8f686c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2207fe00939cda0c743a0a1ea137d999df35c1b3b673c508eebc408588b8289c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2026-05-16T10:09:39Z",
    "title_canon_sha256": "e534b95e9e11ca1db73ea817e6c216f5f46bba104e0cb0e63f99b8cd8d7303ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.16916",
    "kind": "arxiv",
    "version": 1
  }
}