{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:5PB6OKIXIVTTWP6XYBIQKBYXF5","short_pith_number":"pith:5PB6OKIX","schema_version":"1.0","canonical_sha256":"ebc3e7291745673b3fd7c0510507172f68a3a5231153457d34cf285a069beae6","source":{"kind":"arxiv","id":"astro-ph/0612560","version":1},"attestation_state":"computed","paper":{"title":"On the Heterogeneity of Metal-Line and Ly-Alpha Absorption in Galaxy \"Halos\" at z~0.7","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Caltech), Charles C. Steidel (2), Christopher W. Churchill (1), Glenn G. Kacprzak (1), Jessica L. Evans (1) ((1) New Mexico State University","submitted_at":"2006-12-19T21:10:48Z","abstract_excerpt":"We examine the properties of two galaxy \"halos\" at z ~ 0.7 in the TON 153 (z_em = 1.01) quasar field. The first absorber-galaxy pair (G1) is a z = 0.672, L_B = 4.3 L*_B, E/S0 galaxy probed at D = 58 kpc. G1 is associated with a remarkable five-component Ly-alpha complex having tau_LL < 0.4, W_r(Lya) = 2.8 A, and a velocity spread of v = 1420 km/s. We find no MgII, CIV, NV, nor OVI absorption in these clouds and infer metallicity upper limits of -3 < log(Z/Z_sun) < -1, depending upon assumptions of photoionized or collisionally ionized gas. The second absorber-galaxy pair (G2) is a z = 0.661, L"},"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":"astro-ph/0612560","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-12-19T21:10:48Z","cross_cats_sorted":[],"title_canon_sha256":"fe6c7fb7198e3bb05085ad2d4b247d98c318f9794eb11065e95fce5e40375717","abstract_canon_sha256":"86a3754b5d0e2e4461529beba29aec27175442b1e2fcde2d25408cd35df51229"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:29:14.648522Z","signature_b64":"stY2OjYSjwmuTzItO5FlYVyPJSlpyqRDltAxx0nNvJxZrQ/G27+VHuNkHqlSnMeKAhztQX5AW9h16cuJZZlODA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"ebc3e7291745673b3fd7c0510507172f68a3a5231153457d34cf285a069beae6","last_reissued_at":"2026-05-18T04:29:14.648074Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:29:14.648074Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"On the Heterogeneity of Metal-Line and Ly-Alpha Absorption in Galaxy \"Halos\" at z~0.7","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"(2) Caltech), Charles C. Steidel (2), Christopher W. Churchill (1), Glenn G. Kacprzak (1), Jessica L. Evans (1) ((1) New Mexico State University","submitted_at":"2006-12-19T21:10:48Z","abstract_excerpt":"We examine the properties of two galaxy \"halos\" at z ~ 0.7 in the TON 153 (z_em = 1.01) quasar field. The first absorber-galaxy pair (G1) is a z = 0.672, L_B = 4.3 L*_B, E/S0 galaxy probed at D = 58 kpc. G1 is associated with a remarkable five-component Ly-alpha complex having tau_LL < 0.4, W_r(Lya) = 2.8 A, and a velocity spread of v = 1420 km/s. We find no MgII, CIV, NV, nor OVI absorption in these clouds and infer metallicity upper limits of -3 < log(Z/Z_sun) < -1, depending upon assumptions of photoionized or collisionally ionized gas. The second absorber-galaxy pair (G2) is a z = 0.661, L"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0612560","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"astro-ph/0612560","created_at":"2026-05-18T04:29:14.648143+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0612560v1","created_at":"2026-05-18T04:29:14.648143+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0612560","created_at":"2026-05-18T04:29:14.648143+00:00"},{"alias_kind":"pith_short_12","alias_value":"5PB6OKIXIVTT","created_at":"2026-05-18T12:25:53.939244+00:00"},{"alias_kind":"pith_short_16","alias_value":"5PB6OKIXIVTTWP6X","created_at":"2026-05-18T12:25:53.939244+00:00"},{"alias_kind":"pith_short_8","alias_value":"5PB6OKIX","created_at":"2026-05-18T12:25:53.939244+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5","json":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5.json","graph_json":"https://pith.science/api/pith-number/5PB6OKIXIVTTWP6XYBIQKBYXF5/graph.json","events_json":"https://pith.science/api/pith-number/5PB6OKIXIVTTWP6XYBIQKBYXF5/events.json","paper":"https://pith.science/paper/5PB6OKIX"},"agent_actions":{"view_html":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5","download_json":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5.json","view_paper":"https://pith.science/paper/5PB6OKIX","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0612560&json=true","fetch_graph":"https://pith.science/api/pith-number/5PB6OKIXIVTTWP6XYBIQKBYXF5/graph.json","fetch_events":"https://pith.science/api/pith-number/5PB6OKIXIVTTWP6XYBIQKBYXF5/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5/action/storage_attestation","attest_author":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5/action/author_attestation","sign_citation":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5/action/citation_signature","submit_replication":"https://pith.science/pith/5PB6OKIXIVTTWP6XYBIQKBYXF5/action/replication_record"}},"created_at":"2026-05-18T04:29:14.648143+00:00","updated_at":"2026-05-18T04:29:14.648143+00:00"}