Pith Number

pith:2ZWCZXME

pith:2026:2ZWCZXMERX7QC3YDDRVCM3H3DZ

not attested not anchored not stored refs resolved

Strong Progenitor Age Bias in Supernova Cosmology. III. Progenitor Age as the Physical Origin of the Type Ia Supernova Magnitude Steps with Host Properties

Chul Chung, Hyejeon Cho, Junhyuk Son, Seunghyun Park, Suk-Jin Yoon, Young-Lo Kim, Young-Wook Lee

Progenitor age drives the Type Ia supernova magnitude steps with host galaxy mass and star formation rate.

arxiv:2605.12596 v1 · 2026-05-12 · astro-ph.GA

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZWCZXMERX7QC3YDDRVCM3H3DZ}

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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

progenitor age is the primary driver of both the strong host-age--HR relation and the apparent host-mass and host-sSFR steps.

C2weakest assumption

That the measured host-galaxy ages accurately trace the progenitor ages of the supernovae and that the observed correlations reflect a direct physical dependence rather than selection effects or other confounders.

C3one line summary

Progenitor age is the primary physical driver of the host-mass and host-sSFR magnitude steps in Type Ia supernovae, with the mass step eliminated by direct age correction.

References

112 extracted · 112 resolved · 64 Pith anchors

[1] Astier et al · doi:10.1051/0004-6361:20054185

[2] , year = 1956, month = feb, volume = 1956 · doi:10.1086/126870

[3] F., Kramer M., 2008, @doi [ ] 10.1111/j.1365-2966.2008.14045.x , https://ui.adsabs.harvard.edu/abs/2008MNRAS.391.2009K 391 2008 · doi:10.1111/j.1365-2966.2008.13348.x

[4] 2012, MNRAS, 426, 1324, doi: 10.1111/j.1365-2966.2012.21757.x 2012 · doi:10.1111/j.1365-2966.2012.20340.x

[5] Galaxy And Mass Assembly (GAMA): the G02 field, Herschel-ATLAS target selection and Data Release 3 · doi:10.1093/mnras/stx3042

Formal links

2 machine-checked theorem links

Receipt and verification

First computed	2026-05-18T03:10:01.185877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d66c2cdd848dff016f031c6a266cfb1e7db25c260b8496e2766462ae2c459c0d

Aliases

arxiv: 2605.12596 · arxiv_version: 2605.12596v1 · doi: 10.48550/arxiv.2605.12596 · pith_short_12: 2ZWCZXMERX7Q · pith_short_16: 2ZWCZXMERX7QC3YD · pith_short_8: 2ZWCZXME

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/2ZWCZXMERX7QC3YDDRVCM3H3DZ \
  | 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: d66c2cdd848dff016f031c6a266cfb1e7db25c260b8496e2766462ae2c459c0d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "268a1c6f496f51a5e191935f1e3f4fe79c92b5b4145397140a0c1643d6f13554",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-12T18:00:01Z",
    "title_canon_sha256": "f6d033b71c195621b1337e82c8874a1cf31c9a52e7b863e2f4fbd379ec4b1b68"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.12596",
    "kind": "arxiv",
    "version": 1
  }
}