{"paper":{"title":"Testing Lens Models of PLCK G165.7+67.0 Using Lensed SN H0pe","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Lens models of a galaxy cluster overestimate the magnification of lensed supernova H0pe by more than 1 magnitude.","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.CO","authors_text":"Aadya Agrawal, Anton M. Koekemoer, B. L. Frye, David Vizgan, Gautham Narayan, J. D. R. Pierel, Jose M. Diego, Kaisey S. Mandel, Matthew Grayling, M. Pascale, Nikhil Garuda, Rogier A. Windhorst","submitted_at":"2025-10-09T00:17:20Z","abstract_excerpt":"Supernova H0pe is a multiply-imaged Type Ia supernova (SN~Ia) and the second lensed SN to yield a measurement of the Hubble constant by the time-delay cosmography method, finding $H_0 = 75.4^{+8.1}_{-5.5} \\text{km s}^{-1} \\text{Mpc}^{-1}$ (Pascale et. al 2025). We investigate the seven lens modeling approaches used to derive $H_0$, assessing their agreement with $\\Lambda \\text{CDM}$ constraints from SN~Ia surveys through a purely observational comparison. \\textbf{We test each lens model by combining its predicted magnifications with the observed time delays to reconstruct the intrinsic SN~Ia l"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"our comparison reveals that lens model predictions, even the most precise ones, consistently overestimate the magnification, with a offset of Δμ > 1 mag.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"The photometric derivation of magnifications from the lensed SN H0pe is accurate and free of systematics that would invalidate the direct comparison to lens-model predictions (abstract, paragraph on purely observational comparison).","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Lens models for PLCK G165.7+67.0 overestimate the magnification of lensed SN H0pe by Δμ > 1 mag, while photometric estimates align with ΛCDM.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Lens models of a galaxy cluster overestimate the magnification of lensed supernova H0pe by more than 1 magnitude.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"c2886dc74492e95fbc1fa3f0f7121ad1344424c0465d51d8388ba6a98ec83b80"},"source":{"id":"2510.07637","kind":"arxiv","version":2},"verdict":{"id":"3afed1a9-c166-4eea-9f37-a18925a95f4a","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-18T09:42:25.123665Z","strongest_claim":"our comparison reveals that lens model predictions, even the most precise ones, consistently overestimate the magnification, with a offset of Δμ > 1 mag.","one_line_summary":"Lens models for PLCK G165.7+67.0 overestimate the magnification of lensed SN H0pe by Δμ > 1 mag, while photometric estimates align with ΛCDM.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"The photometric derivation of magnifications from the lensed SN H0pe is accurate and free of systematics that would invalidate the direct comparison to lens-model predictions (abstract, paragraph on purely observational comparison).","pith_extraction_headline":"Lens models of a galaxy cluster overestimate the magnification of lensed supernova H0pe by more than 1 magnitude."},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2510.07637/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":2,"snapshot_sha256":"2e7b44386bac886b800bf7ce0be5758ee2801a7e6066db026284ff41462f2111"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}