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We measure a systemic velocity for the system of $v_{\\mathrm{Tuc}}=216.7_{-2.8}^{+2.9}$kms$^{-1}$, and a velocity dispersion of $\\sigma_{\\mathrm{v,Tuc}}=14.4_{-2.3}^{+2.8}$kms$^{-1}$. We also detect a rotation gradient of $\\frac{dv_{r}}{d\\chi}=7.6^{+4.2}_{-4.3}$ kms$^{-1}$ kpc$^{-1}$, which reduces the systemic velocity to $v_{\\mathrm{Tuc}}=215.2_{-2.7}^{+2.8}$ kms$^{-1}$ and the velocity dispersion to $\\sigma_{v,\\mathrm{Tuc}}=13.3_{-2.3}^{+2.7}$ kms$^{-1}$. We perform Je"},"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":"1902.07228","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2019-02-19T19:00:56Z","cross_cats_sorted":[],"title_canon_sha256":"440bf4a3ddae57ab7151f4d22d4dd674d7710b7f4133b8b46320ef95de22e9ea","abstract_canon_sha256":"cdd4fe966ca85f86b411f5cb5913869a32f8741a61ff7ebb9819cf196f6c9acd"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-17T23:52:14.609810Z","signature_b64":"X/ij+CI642AI8lHZ2FqjZvD7eyg5IIVvkgEqtjSZIZkYNKZoRobeM+vy2VvFymELurlt/zRle/z9Chl+5oP0AQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"c140e7c2aae1d8ab93a98f04361916869624ecca8f546f8621910cb6044446c6","last_reissued_at":"2026-05-17T23:52:14.609059Z","signature_status":"signed_v1","first_computed_at":"2026-05-17T23:52:14.609059Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Kinematics of the Tucana Dwarf Galaxy: An Unusually Dense Dwarf in the Local Group","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alan W. McConnachie, Alexandra L. Gregory, Daniel R. Weisz, Justin I. Read, Michael J. Irwin, Michelle L. M. Collins, Nicolas F. Martin, Rodrigo A. Ibata","submitted_at":"2019-02-19T19:00:56Z","abstract_excerpt":"We present new FLAMES$+$GIRAFFE spectroscopy of 36 member stars in the isolated Local Group dwarf spheroidal galaxy Tucana. We measure a systemic velocity for the system of $v_{\\mathrm{Tuc}}=216.7_{-2.8}^{+2.9}$kms$^{-1}$, and a velocity dispersion of $\\sigma_{\\mathrm{v,Tuc}}=14.4_{-2.3}^{+2.8}$kms$^{-1}$. We also detect a rotation gradient of $\\frac{dv_{r}}{d\\chi}=7.6^{+4.2}_{-4.3}$ kms$^{-1}$ kpc$^{-1}$, which reduces the systemic velocity to $v_{\\mathrm{Tuc}}=215.2_{-2.7}^{+2.8}$ kms$^{-1}$ and the velocity dispersion to $\\sigma_{v,\\mathrm{Tuc}}=13.3_{-2.3}^{+2.7}$ kms$^{-1}$. 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