First narrow-line flux ratios for lensed quasar RXJ1131-1231 measured with JWST/NIRSpec IFS at ~5% precision, detecting cusp anomaly consistent with prior work.
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2 Pith papers cite this work, alongside 204 external citations. Polarity classification is still indexing.
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Excessive external shear in ellipsoidal lens models of quadruply-lensed quasar NLRs always resolves position anomalies and reduces flux-ratio anomalies, concealing signals commonly attributed to dark-matter substructure.
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First measurement of narrow-line flux ratios for a lensed quasar with JWST/NIRSpec IFS
First narrow-line flux ratios for lensed quasar RXJ1131-1231 measured with JWST/NIRSpec IFS at ~5% precision, detecting cusp anomaly consistent with prior work.
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The Subversive Role of Excessive External Shear in Concealing Lensing Anomalies
Excessive external shear in ellipsoidal lens models of quadruply-lensed quasar NLRs always resolves position anomalies and reduces flux-ratio anomalies, concealing signals commonly attributed to dark-matter substructure.