{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2007:2JYAWFYHSWYV3PYEYYXMUCLPWI","short_pith_number":"pith:2JYAWFYH","schema_version":"1.0","canonical_sha256":"d2700b170795b15dbf04c62eca096fb217a8ec7e2cb899ade41b1795842002b8","source":{"kind":"arxiv","id":"astro-ph/0703652","version":1},"attestation_state":"computed","paper":{"title":"3D Hydrodynamical Simulations of Surface Convection in Red Giant Stars. Impact on spectral line formation and abundance analysis","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Martin Asplund, Regner Trampedach, Remo Collet","submitted_at":"2007-03-26T15:14:48Z","abstract_excerpt":"We investigate the impact of 3D hydrodynamical model atmospheres of red giant stars at different metallicities on the formation of spectral lines of a number of ions and molecules. We carry out realistic 3D simulations of surface convection in red giant stars with varying stellar parameters. We use the simulations as time-dependent hydrodynamical model stellar atmospheres to compute atomic (Li, O, Na, Mg, Ca, Fe) and molecular (CH, NH, OH) spectral lines under the assumption of local thermodynamic equilibrium (LTE). We compare the line strengths computed in 3D with the results of analogous lin"},"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/0703652","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"2007-03-26T15:14:48Z","cross_cats_sorted":[],"title_canon_sha256":"7f8d1af676c5df21157164b0aae33c69012eb00c2905c001ada7569fd446fe68","abstract_canon_sha256":"fc462c84d844060452f0ee1b2cfd86cf2eb340b1d18cf621711cf5c040393644"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-04T17:07:49.388442Z","signature_b64":"JXleijp6sgTiv6ZrGKCPFnJH88Ruu15g8/oxw4aOAxRSsyzMAoQrqZJK+56PBhIBf+iC9UA7hySNKKYDnOelCQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"d2700b170795b15dbf04c62eca096fb217a8ec7e2cb899ade41b1795842002b8","last_reissued_at":"2026-07-04T17:07:49.388040Z","signature_status":"signed_v1","first_computed_at":"2026-07-04T17:07:49.388040Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"3D Hydrodynamical Simulations of Surface Convection in Red Giant Stars. Impact on spectral line formation and abundance analysis","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"Martin Asplund, Regner Trampedach, Remo Collet","submitted_at":"2007-03-26T15:14:48Z","abstract_excerpt":"We investigate the impact of 3D hydrodynamical model atmospheres of red giant stars at different metallicities on the formation of spectral lines of a number of ions and molecules. We carry out realistic 3D simulations of surface convection in red giant stars with varying stellar parameters. We use the simulations as time-dependent hydrodynamical model stellar atmospheres to compute atomic (Li, O, Na, Mg, Ca, Fe) and molecular (CH, NH, OH) spectral lines under the assumption of local thermodynamic equilibrium (LTE). We compare the line strengths computed in 3D with the results of analogous lin"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/0703652","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/0703652/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/0703652","created_at":"2026-07-04T17:07:49.388100+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/0703652v1","created_at":"2026-07-04T17:07:49.388100+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/0703652","created_at":"2026-07-04T17:07:49.388100+00:00"},{"alias_kind":"pith_short_12","alias_value":"2JYAWFYHSWYV","created_at":"2026-07-04T17:07:49.388100+00:00"},{"alias_kind":"pith_short_16","alias_value":"2JYAWFYHSWYV3PYE","created_at":"2026-07-04T17:07:49.388100+00:00"},{"alias_kind":"pith_short_8","alias_value":"2JYAWFYH","created_at":"2026-07-04T17:07:49.388100+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/2JYAWFYHSWYV3PYEYYXMUCLPWI","json":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI.json","graph_json":"https://pith.science/api/pith-number/2JYAWFYHSWYV3PYEYYXMUCLPWI/graph.json","events_json":"https://pith.science/api/pith-number/2JYAWFYHSWYV3PYEYYXMUCLPWI/events.json","paper":"https://pith.science/paper/2JYAWFYH"},"agent_actions":{"view_html":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI","download_json":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI.json","view_paper":"https://pith.science/paper/2JYAWFYH","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/0703652&json=true","fetch_graph":"https://pith.science/api/pith-number/2JYAWFYHSWYV3PYEYYXMUCLPWI/graph.json","fetch_events":"https://pith.science/api/pith-number/2JYAWFYHSWYV3PYEYYXMUCLPWI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI/action/storage_attestation","attest_author":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI/action/author_attestation","sign_citation":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI/action/citation_signature","submit_replication":"https://pith.science/pith/2JYAWFYHSWYV3PYEYYXMUCLPWI/action/replication_record"}},"created_at":"2026-07-04T17:07:49.388100+00:00","updated_at":"2026-07-04T17:07:49.388100+00:00"}