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Tauris","submitted_at":"2018-09-03T19:56:25Z","abstract_excerpt":"We determine the properties of the binary star V106 in the old open cluster NGC6791. We identify the system to be a blue straggler cluster member by using a combination of ground-based and Kepler photometry and multi-epoch spectroscopy. The properties of the primary component are found to be $M_{\\rm p}\\sim1.67 \\rm M_{\\odot}$, more massive than the cluster turn-off, with $R_{\\rm p}\\sim1.91 \\rm R_{\\odot}$ and $T_{\\rm eff}=7110\\pm100$ K. The secondary component is highly oversized and overluminous for its low mass with $M_{\\rm s}\\sim0.182 \\rm M_{\\odot}$, $R_{\\rm s}\\sim0.864 \\rm R_{\\odot}$ and $T_"},"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":"1809.00705","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2018-09-03T19:56:25Z","cross_cats_sorted":[],"title_canon_sha256":"203425d981c361f9a606aefbc6e3159e906a4835f0651bd23692870ef3443175","abstract_canon_sha256":"fdeccb6d870b538e05e652c5e59d00dabbf8c38f8e581e46bd86732183ece3a7"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:04:47.960580Z","signature_b64":"NG2hTKWSsCQfPsfkmS1BskxjXNfjD9MxZOxpIv5flyaIcPdhJZ8ASaNVIaxmUk9wZpzUX5fu5Bmnl8reJHLGAg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d9f6821a8a39c8ca41e3b7582f850a2ec2db554ef6fbeb017275895bcfd6ae4","last_reissued_at":"2026-05-18T00:04:47.959920Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:04:47.959920Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The blue straggler V106 in NGC6791: A prototype progenitor of old single giants masquerading as young","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.SR","authors_text":"A. 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