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Koz{\\l}owski, W. Pych, Y. Beletsky","submitted_at":"2020-01-06T11:00:11Z","abstract_excerpt":"We use photometric and spectroscopic observations of the eclipsing binary E32 in the globular cluster 47 Tuc to derive the masses, radii, and luminosities of the component stars. The system has an orbital period of 40.9 d, a markedly eccentric orbit with e = 0.24, and is shown to be a member of or a recent escaper from the cluster. We obtain Mp = 0.862(5) Msun , Rp = 1.183(3) Rsun , Lp = 1.65(5) Lsun for the primary and Ms = 0.827(5) Msun , Rs = 1.004(4) Rsun , Ls = 1.14(4) Lsun for the secondary. Based on these data and on an earlier analysis of the binary V69 in 47 Tuc we measure the distanc"},"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":"2001.01481","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2020-01-06T11:00:11Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"84e6a89702085b73fef63e983d3a05cdfb3f863c40056ac4a4a90a709d191c21","abstract_canon_sha256":"b1148be6323311d17d4dc74d36402c2f5763480b2143a5505bd1ac9279aaba14"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T00:34:51.046858Z","signature_b64":"nTlGMQLfa857SWN32ticK2SKT1tlcVrTlMRq8ga5zYfo/s7DNo+iIG+UtKuZihl+WXBctaZmy2bl5Hg8tEjLBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"723eb83525a12bde0b9d30e44e94ce270c8839b54c37adfe26571dee1e8d4439","last_reissued_at":"2026-07-05T00:34:51.046340Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T00:34:51.046340Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The Cluster Ages Experiment (CASE). 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