{"paper":{"title":"Wide Separation Planets In Time (WISPIT): Discovery of a Gap H$\\alpha$ Protoplanet WISPIT 2b with MagAO-X","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["astro-ph.IM"],"primary_cat":"astro-ph.EP","authors_text":"Alexander D. Hedglen, Alycia J. Weinberger, Avalon McLeod, Christian Ginski, Daniel Apai, Eden McEwen, Elena Tonucci, Emmeline Close, Gabriel Weible, Ilya Ilyin, Jacob Isbell, Jared Carlson, Jared R. Males, Jay Kueny, Jenny Power, Jialin Li, Joseph D. Long, Joshua Liberman, Kate Follette, Katie Twitchell, Kevin Wagner, Kyle Van Gorkom, Laird M. Close, Lauren Schatz, Logan Pearce, Maggie Y. Kautz, Matthew A. Kenworthy, Matthijs Mars, Olivier Guyon, Parker Johnson, Rene Doyon, Richelle F. van Capelleveen, Sebastiaan Y. Haffert, Steve Ertel, Victor Gasho, Warren Foster, Ya-Lin Wu","submitted_at":"2025-08-26T14:00:02Z","abstract_excerpt":"Excellent (<25 mas) H$_{\\alpha}$ images of the star TYC 5709-354-1 led to the discovery of a rare H$_{\\alpha}$ protoplanet. This star was discovered by the WISPIT survey to have a large multi-ring transitional disk, and is hereafter WISPIT 2. Our H$_{\\alpha}$ images of 2025, April 13 and April 16 discovered an accreting (H$_{\\alpha}$ in emission) protoplanet: WISPIT 2b (r=309.43$\\pm$1.56 mas; (~54 au deprojected), PA=242.21$\\pm$0.41 degrees) likely clearing a dust-free gap between the two brightest dust rings in the transitional disk. Our SNR=12.5 detection gave an H$_{\\alpha}$ ASDI contrast o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2508.19046","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/2508.19046/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"}