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Munoz","submitted_at":"2017-10-17T18:00:20Z","abstract_excerpt":"We present deep, wide-field Subaru Hyper Suprime-Cam photometry of two recently discovered satellites of the Milky Way (MW): Columba I and Triangulum II. The color magnitude diagrams of both objects point to exclusively old and metal-poor stellar populations. We re-derive structural parameters and luminosities of these satellites, and find $M_{\\rm V, Col~I} = -4.2\\pm0.2$ for Col I and $M_{\\rm V, Tri~II} = -1.2\\pm0.4$ for Tri II, with corresponding half-light radii of $r_{\\rm h, Col~I} = 117\\pm17$ pc and $r_{\\rm h, Tri~II} = 21\\pm4$ pc. The properties of both systems are consistent with observe"},"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":"1710.06444","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-10-17T18:00:20Z","cross_cats_sorted":[],"title_canon_sha256":"decc7af50cd58d72dbb2415588fca57285afd7644dc792bf34c406aa03759f9f","abstract_canon_sha256":"cfa2a3039bb8ef85255770a80cef7d47e63b79dbbd38ecadeb6ff9967cef6096"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:28:13.360594Z","signature_b64":"4hRMoYv7dYU4Mc1loxSxycQvHt92CJecW0aJn8GstzucPVaunbSct9cBNAtGr3ejE9HSSXbDWwd9KVjuL89LAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"5f650d6ec2ffe8501e86001d67080718ea6bcf954f9c770f74d1c024f84a01d3","last_reissued_at":"2026-05-18T00:28:13.359929Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:28:13.359929Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Deep Subaru Hyper Suprime-Cam observations of Milky Way satellites Columba I and Triangulum II","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Aaron J. Romanowsky, Annika H. G. Peter, Beth Willman, David J. Sand, Denija Crnojevic, Duncan A. Forbes, Evan Kirby, Jay Strader, Jeffrey L. Carlin, Jonathan Hargis, Kristine Spekkens, Ricardo R. Munoz","submitted_at":"2017-10-17T18:00:20Z","abstract_excerpt":"We present deep, wide-field Subaru Hyper Suprime-Cam photometry of two recently discovered satellites of the Milky Way (MW): Columba I and Triangulum II. The color magnitude diagrams of both objects point to exclusively old and metal-poor stellar populations. We re-derive structural parameters and luminosities of these satellites, and find $M_{\\rm V, Col~I} = -4.2\\pm0.2$ for Col I and $M_{\\rm V, Tri~II} = -1.2\\pm0.4$ for Tri II, with corresponding half-light radii of $r_{\\rm h, Col~I} = 117\\pm17$ pc and $r_{\\rm h, Tri~II} = 21\\pm4$ pc. 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