{"paper":{"title":"The Spin-orbit alignment of two short period eclipsing binary systems","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"Avi Shporer, B. C. Addison, Duncan J. Wright, Jason Dittmann, John Kielkopf, Jonathan Horner, Peter Plavchan, R.A. Wittenmyer, Stephen R. Kane, Tony Wells, Tyler R. Fairnington","submitted_at":"2025-09-04T02:25:13Z","abstract_excerpt":"We present a joint analysis of TESS photometry and radial velocity measurements obtained from the Minerva-Australis facility for two short-period eclipsing binaries, TIC 48227288 and TIC 339607421. TIC 339607421 hosts an M-dwarf companion ($M_B = 0.294 \\pm 0.013 \\: M_{\\odot}$, $R_B = 0.291 \\pm 0.006 \\: R_{\\odot}$) orbiting an F6V star ($M_A=1.09 \\pm 0.04 \\: M_{\\odot}$, $R_A=1.21^{+0.03}_{-0.02} \\: R_{\\odot}$). While TIC 48227288 contains a late K class companion ($M_B=0.635 \\pm 0.037 \\: M_{\\odot}$, $R_B = 0.605 \\pm 0.011 \\: R_{\\odot}$) orbiting an F3V star ($M_A = 1.36^{+0.06}_{-0.08} \\: M_{\\o"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2509.03826","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/2509.03826/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"}