{"paper":{"title":"JWST's PEARLS: Mothra, a new kaiju star at z=2.091 extremely magnified by MACS0416, and implications for dark matter models","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Aaron Robotham, Adi Zitrin, Anton M. Koekemoer, Ashish K. Meena, Bangzheng Sun, Brenda Frye, Christopher J. Conselice, Christopher N. A. Willmer, Dan Coe, Erik Zackrisson, Haojing Yan, Jake Summers, J.M. Diego, Jordan C. J. D Silva, Jr., Liang Dai, Lukas J. Furtak, Madeline A. Marshall, Mario Nonino, Michael J. Rutkowski, Nathan Adams, Norman A. Grogin, Nor Pirzkal, Patrick Kelly, Rachana Bhatawdekar, Rogier A. Windhorst, Rolf A. Jansen, Russell E. Ryan, Scott Tompkins, Seth H. Cohen, Simon P. Driver, S. P. Willner","submitted_at":"2023-07-19T18:00:01Z","abstract_excerpt":"We report the discovery of Mothra, an extremely magnified monster star, likely a binary system of two supergiant stars, in one of the strongly lensed galaxies behind the galaxy cluster MACS0416. The star is in a galaxy with spectroscopic redshift $z=2.091$ in a portion of the galaxy that is parsecs away from the cluster caustic. The binary star is observed only on the side of the critical curve with negative parity but has been detectable for at least eight years, implying the presence of a small lensing perturber.\n  Microlenses alone cannot explain the earlier observations of this object made"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2307.10363","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2307.10363/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":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}