{"paper":{"title":"JWST/NIRCam Transmission Spectroscopy of the Nearby Sub-Earth GJ 341b","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.EP","authors_text":"David K. Sing, E. M. May, Guangwei Fu, Hannah R. Wakeford, Jacob Lustig-Yaeger, James Kirk, Jeff A. Valenti, Joshua D. Lothringer, Junellie Gonzalez-Quiles, Katherine A. Bennett, Kevin B. Stevenson, Kristin S. Sotzen, L. C. Mayorga, Mercedes L\\'opez-Morales, Munazza K. Alam, Natasha E. Batalha, Ryan J. MacDonald, Sarah E. Moran, Sarah Peacock, Zafar Rustamkulov","submitted_at":"2024-01-11T16:59:23Z","abstract_excerpt":"We present a JWST/NIRCam transmission spectrum from $3.9-5.0$ $\\mu$m of the recently-validated sub-Earth GJ 341b ($\\mathrm{R_P} = 0.92$ $\\mathrm{R_{\\oplus}}$, $\\mathrm{T_{eq}} = 540$ K) orbiting a nearby bright M1 star ($\\mathrm{d} = 10.4$ pc, $\\mathrm{K_{mag}}=5.6$). We use three independent pipelines to reduce the data from the three JWST visits and perform several tests to check for the significance of an atmosphere. Overall, our analysis does not uncover evidence of an atmosphere. Our null hypothesis tests find that none of our pipelines' transmission spectra can rule out a flat line, alth"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2401.06043","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/2401.06043/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"}