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Terrien, Samuel Halverson, Scott A. Diddams, Shubham Kanodia, William D. Cochran","submitted_at":"2020-06-25T16:44:37Z","abstract_excerpt":"We confirm the planetary nature of TOI-1728b using a combination of ground-based photometry, near-infrared Doppler velocimetry and spectroscopy with the Habitable-zone Planet Finder.TOI-1728 is an old, inactive M0 star with \\teff{} $= 3980^{+31}_{-32}$ K, which hosts a transiting super Neptune at an orbital period of $\\sim$ 3.49 days. Joint fitting of the radial velocities and TESS and ground-based transits yields a planetary radius of $5.05_{-0.17}^{+0.16}$ R$_{\\oplus}$, mass $26.78_{-5.13}^{+5.43}$ M$_{\\oplus}$ and eccentricity $0.057_{-0.039}^{+0.054}$. We estimate the stellar properties, a"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"2006.14546","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-06-25T16:44:37Z","cross_cats_sorted":["astro-ph.SR"],"title_canon_sha256":"3d58b304c0f6db4a85a7f5d6d89ed3386c329465430489c043b53c1a81ad6352","abstract_canon_sha256":"e4c73fcb08be98151c7fb263671669482c8691454e53671dc04d38cf82c6977d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T01:28:13.646288Z","signature_b64":"OCFS4zPts8hxmbnVwOgSQfSUNnTWWaYd9Wdc7jqQ5sMzl1/hBZpcm1SQ+gEjW8vK4l2VVCSF3w7eQHU3kdWcDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"dad9553048c692f16d72ca193ac6f377581da80e50475a99a4201048b9fa24bf","last_reissued_at":"2026-07-05T01:28:13.645830Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T01:28:13.645830Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"TOI-1728b: The Habitable-zone Planet Finder confirms a warm super Neptune orbiting an M dwarf host","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"7 Suvrath Mahadevan, Andrea S.J. Lin, Andrew J. Metcalf, Andrew Monson, Arpita Roy, Caleb I. Canas, Chad F. Bender, Christian Schwab, Connor Fredrick, Eric B. Ford, Fred Hearty, Gudmundur Stefansson, Helen Baran, Jason T. Wright, Jiayin Dong, Joe P. Ninan, Lawrence W. Ramsey, Leslie Hebb, Marissa Maney, Michael Endl, Paul Robertson, Ryan C. Terrien, Samuel Halverson, Scott A. Diddams, Shubham Kanodia, William D. Cochran","submitted_at":"2020-06-25T16:44:37Z","abstract_excerpt":"We confirm the planetary nature of TOI-1728b using a combination of ground-based photometry, near-infrared Doppler velocimetry and spectroscopy with the Habitable-zone Planet Finder.TOI-1728 is an old, inactive M0 star with \\teff{} $= 3980^{+31}_{-32}$ K, which hosts a transiting super Neptune at an orbital period of $\\sim$ 3.49 days. 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