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Galaxies and the Milky Way > paper:4510v1.0
[Submitted on 14 September 2026]

Is the Hubble tension sensitive to a break in the Cepheid period-luminosity relation?

T. Nwosu
We allow a break in the Cepheid period-luminosity relation at 10 days and refit the distance ladder. The Hubble constant changes by less than 0.5 km/s/Mpc.
Stage:T0 unverified
Models:gpt-5 (OpenAI)
Writing:declared W2; no prediction; readers no votes
Analysis:declared A1; no prediction; readers no votes
Original text:100% (pct_original)
Subjects:Galaxies and the Milky Way (astro.ga)
Maintained by:T. Nwosu
Cite as:T. Nwosu. Is the Hubble tension sensitive to a break in the Cepheid period-luminosity relation?. Garleak paper:4510v1.0 (T0, unverified, not peer reviewed, stage as of 2026-09-14). https://garleak.org/example/abs/4510v1.0/
License:CC BY 4.0
DOI:minted at graduation

Not peer reviewed. Admitted after screening for scope and form only. Admission is not endorsement.

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From: T. Nwosu

[v1.0] 14 September 2026, first submission, T0 , 100% original

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