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The first, SGAS J122651.3+215220 at z = 2.9233 is lensed by one of several sub-clusters, SDSS J1226+2152, in a complex massive cluster at z = 0.43. Its (g, r, i) magnitudes are (21.14, 20.60, 20.51) which translate to surface brightnesses, mu_{g,r,i}, of (23.78, 23.11, 22.81). The second, SGAS J152745.1+065219, is an LBG at z = 2.7593 lensed by the foreground SDSS J1527+0652 at z = 0.39, with (g, r, z)=(20.90, 20.52, 20.58) and mu_{g,r,z}="},"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":"1003.0030","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.CO","submitted_at":"2010-02-26T22:47:39Z","cross_cats_sorted":[],"title_canon_sha256":"84bc5197029eb4e80baeb114369e3e9bcaa17635082f6d18bfb60c210958b92d","abstract_canon_sha256":"b89396c4dda1a764ce07ede711d8ce73f3d7c146e4c9abf90e6fa169d55a2f17"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:08:48.708803Z","signature_b64":"1kwnbWERNsXRaD0jSMz/nj4qcjsilFBh28n/CTRpNGZ883xfXtkmIEIUTedfkOPpi7evcujisFIif8+d5iThBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"e1b80f798a4eae53ff0421f090dd05cb4a001af9544f9d8e89ab1994091b3e7c","last_reissued_at":"2026-05-18T02:08:48.707952Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:08:48.707952Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Two Lensed z~3 Lyman Break Galaxies Discovered in the SDSS Giant Arcs Survey","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Benjamin P. Koester, Eva Wuyts, Hakon Dahle, Joseph F. Hennawi, J.R. Rigby, Keren Sharon, Matthew B. Bayliss, Michael D. Gladders","submitted_at":"2010-02-26T22:47:39Z","abstract_excerpt":"We report the discovery of two strongly-lensed z ~ 3 Lyman Break Galaxies (LBGs) discovered as u-band dropouts as part of the SDSS Giant Arcs Survey (SGAS). The first, SGAS J122651.3+215220 at z = 2.9233 is lensed by one of several sub-clusters, SDSS J1226+2152, in a complex massive cluster at z = 0.43. Its (g, r, i) magnitudes are (21.14, 20.60, 20.51) which translate to surface brightnesses, mu_{g,r,i}, of (23.78, 23.11, 22.81). 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