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arxiv astro-ph/0612556 v1 pith:LJCGHCSW submitted 2006-12-19 astro-ph

Testing for monotonicity in the Hubble diagram

classification astro-ph
keywords monotonicitydatadiagramhubblemethodadaptedaloneconfront
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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General relativistic kinematics and the cosmological principle alone imply a monotonicity constraint in the Hubble diagram, which we confront to present-day supernova data. We use the running gradient method of statistical inference by Hall & Heckman (2000). We find no significant departure from monotonicity. The method seems well adapted and we recommend its use with future data.

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