{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2006:IPCTG2ZCZPNRGF23C3F6IVDGPS","short_pith_number":"pith:IPCTG2ZC","schema_version":"1.0","canonical_sha256":"43c5336b22cbdb13175b16cbe454667c948f2907dccf39db154f7b7c20d89a9c","source":{"kind":"arxiv","id":"astro-ph/0601706","version":1},"attestation_state":"computed","paper":{"title":"Bias-free Measurement of Giant Molecular Cloud Properties","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Adam Leroy (2) ((1) Center for Astrophysics (2) UC Berkeley), Erik Rosolowsky (1)","submitted_at":"2006-01-31T15:48:51Z","abstract_excerpt":"(abridged) We review methods for measuring the sizes, line widths, and luminosities of giant molecular clouds (GMCs) in molecular-line data cubes with low resolution and sensitivity. We find that moment methods are robust and sensitive -- making full use of both position and intensity information -- and we recommend a standard method to measure the position angle, major and minor axis sizes, line width, and luminosity using moment methods. Without corrections for the effects of beam convolution and sensitivity to GMC properties, the resulting properties may be severely biased. This is particul"},"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/0601706","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2006-01-31T15:48:51Z","cross_cats_sorted":[],"title_canon_sha256":"b410415bf7a141d790ff3d01027842bb9c00470d964b7b77de5932c0fdaa22d6","abstract_canon_sha256":"ded7c3630673fc7fe0c65b63c8b012b272311b18bb2bb66cc3d0ba9e9d6855b1"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T15:31:21.109966Z","signature_b64":"//j3zLStVwJQr74iJCKx72gnnYhjMa796F00jtT+YOP3oGoNr//cE1I9OpI+/UieBFs8kx6QNjh47GWGKtKYBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"43c5336b22cbdb13175b16cbe454667c948f2907dccf39db154f7b7c20d89a9c","last_reissued_at":"2026-07-04T15:31:21.109556Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T15:31:21.109556Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Bias-free Measurement of Giant Molecular Cloud Properties","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Adam Leroy (2) ((1) Center for Astrophysics (2) UC Berkeley), Erik Rosolowsky (1)","submitted_at":"2006-01-31T15:48:51Z","abstract_excerpt":"(abridged) We review methods for measuring the sizes, line widths, and luminosities of giant molecular clouds (GMCs) in molecular-line data cubes with low resolution and sensitivity. We find that moment methods are robust and sensitive -- making full use of both position and intensity information -- and we recommend a standard method to measure the position angle, major and minor axis sizes, line width, and luminosity using moment methods. Without corrections for the effects of beam convolution and sensitivity to GMC properties, the resulting properties may be severely biased. This is particul"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0601706","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/astro-ph/0601706/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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/0601706","created_at":"2026-07-04T15:31:21.109615+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0601706v1","created_at":"2026-07-04T15:31:21.109615+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0601706","created_at":"2026-07-04T15:31:21.109615+00:00"},{"alias_kind":"pith_short_12","alias_value":"IPCTG2ZCZPNR","created_at":"2026-07-04T15:31:21.109615+00:00"},{"alias_kind":"pith_short_16","alias_value":"IPCTG2ZCZPNRGF23","created_at":"2026-07-04T15:31:21.109615+00:00"},{"alias_kind":"pith_short_8","alias_value":"IPCTG2ZC","created_at":"2026-07-04T15:31:21.109615+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":3,"internal_anchor_count":3,"sample":[{"citing_arxiv_id":"2606.18229","citing_title":"An extreme ram-pressure stripping event in a protocluster at redshift 4.3","ref_index":68,"is_internal_anchor":true},{"citing_arxiv_id":"2606.21160","citing_title":"Star Formation at the Periphery of a Molecular Superbubble: The Case of G12.79+0.43","ref_index":147,"is_internal_anchor":true},{"citing_arxiv_id":"2605.15659","citing_title":"Sub-kpc scale gas density histograms of the nearby barred spiral galaxy M83: Multi-component molecular gas structure reflecting the galactic environment","ref_index":122,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS","json":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS.json","graph_json":"https://pith.science/api/pith-number/IPCTG2ZCZPNRGF23C3F6IVDGPS/graph.json","events_json":"https://pith.science/api/pith-number/IPCTG2ZCZPNRGF23C3F6IVDGPS/events.json","paper":"https://pith.science/paper/IPCTG2ZC"},"agent_actions":{"view_html":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS","download_json":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS.json","view_paper":"https://pith.science/paper/IPCTG2ZC","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0601706&json=true","fetch_graph":"https://pith.science/api/pith-number/IPCTG2ZCZPNRGF23C3F6IVDGPS/graph.json","fetch_events":"https://pith.science/api/pith-number/IPCTG2ZCZPNRGF23C3F6IVDGPS/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS/action/timestamp_anchor","attest_storage":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS/action/storage_attestation","attest_author":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS/action/author_attestation","sign_citation":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS/action/citation_signature","submit_replication":"https://pith.science/pith/IPCTG2ZCZPNRGF23C3F6IVDGPS/action/replication_record"}},"created_at":"2026-07-04T15:31:21.109615+00:00","updated_at":"2026-07-04T15:31:21.109615+00:00"}