{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2017:RM43LQPLFPASQ63OSEG2BKLITB","short_pith_number":"pith:RM43LQPL","schema_version":"1.0","canonical_sha256":"8b39b5c1eb2bc1287b6e910da0a9689873d857d55e35615c461c0d7221c41db9","source":{"kind":"arxiv","id":"1702.02162","version":1},"attestation_state":"computed","paper":{"title":"The kinematics of {\\sigma}-drop bulges from spectral synthesis modelling of a hydrodynamical simulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alessandro Pizzella, Andrew Rowe, David R. Cole, Elena Dalla Bonta', Elisa Portaluri, Enrico M. Corsini, Lorenzo Morelli, Maximillian Fabricius, Niv Drory, Victor P. Debattista","submitted_at":"2017-02-07T19:01:22Z","abstract_excerpt":"A minimum in stellar velocity dispersion is often observed in the central regions of disc galaxies. To investigate the origin of this feature, known as a {\\sigma}-drop, we analyse the stellar kinematics of a high-resolution N-body + smooth particle hydrodynamical simulation, which models the secular evolution of an unbarred disc galaxy. We compared the intrinsic mass-weighted kinematics to the recovered luminosity-weighted ones. The latter were obtained by analysing synthetic spectra produced by a new code, SYNTRA, that generates synthetic spectra by assigning a stellar population synthesis mo"},"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":"1702.02162","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2017-02-07T19:01:22Z","cross_cats_sorted":[],"title_canon_sha256":"b2f1137a8c843888cda58e79c63f3ce3cb8d46eeae20194ff76fcbadd667ec76","abstract_canon_sha256":"13cf553720343b9320f997faab2307a72a6690ba1a5071785695e18ac6c5d86b"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:51:06.634446Z","signature_b64":"lD5TSLalL/hsvq4aL4RyaZjwZHhwtnD/5ozAzW7oJ7UoeJElfeA+JSdqL4+Jb7LamFkvqgKQGgQAQzkQeSbbAw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"8b39b5c1eb2bc1287b6e910da0a9689873d857d55e35615c461c0d7221c41db9","last_reissued_at":"2026-05-18T00:51:06.633939Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:51:06.633939Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The kinematics of {\\sigma}-drop bulges from spectral synthesis modelling of a hydrodynamical simulation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.GA","authors_text":"Alessandro Pizzella, Andrew Rowe, David R. Cole, Elena Dalla Bonta', Elisa Portaluri, Enrico M. Corsini, Lorenzo Morelli, Maximillian Fabricius, Niv Drory, Victor P. Debattista","submitted_at":"2017-02-07T19:01:22Z","abstract_excerpt":"A minimum in stellar velocity dispersion is often observed in the central regions of disc galaxies. To investigate the origin of this feature, known as a {\\sigma}-drop, we analyse the stellar kinematics of a high-resolution N-body + smooth particle hydrodynamical simulation, which models the secular evolution of an unbarred disc galaxy. We compared the intrinsic mass-weighted kinematics to the recovered luminosity-weighted ones. The latter were obtained by analysing synthetic spectra produced by a new code, SYNTRA, that generates synthetic spectra by assigning a stellar population synthesis mo"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1702.02162","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":"1702.02162","created_at":"2026-05-18T00:51:06.634010+00:00"},{"alias_kind":"arxiv_version","alias_value":"1702.02162v1","created_at":"2026-05-18T00:51:06.634010+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1702.02162","created_at":"2026-05-18T00:51:06.634010+00:00"},{"alias_kind":"pith_short_12","alias_value":"RM43LQPLFPAS","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_16","alias_value":"RM43LQPLFPASQ63O","created_at":"2026-05-18T12:31:39.905425+00:00"},{"alias_kind":"pith_short_8","alias_value":"RM43LQPL","created_at":"2026-05-18T12:31:39.905425+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/RM43LQPLFPASQ63OSEG2BKLITB","json":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB.json","graph_json":"https://pith.science/api/pith-number/RM43LQPLFPASQ63OSEG2BKLITB/graph.json","events_json":"https://pith.science/api/pith-number/RM43LQPLFPASQ63OSEG2BKLITB/events.json","paper":"https://pith.science/paper/RM43LQPL"},"agent_actions":{"view_html":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB","download_json":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB.json","view_paper":"https://pith.science/paper/RM43LQPL","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1702.02162&json=true","fetch_graph":"https://pith.science/api/pith-number/RM43LQPLFPASQ63OSEG2BKLITB/graph.json","fetch_events":"https://pith.science/api/pith-number/RM43LQPLFPASQ63OSEG2BKLITB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB/action/storage_attestation","attest_author":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB/action/author_attestation","sign_citation":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB/action/citation_signature","submit_replication":"https://pith.science/pith/RM43LQPLFPASQ63OSEG2BKLITB/action/replication_record"}},"created_at":"2026-05-18T00:51:06.634010+00:00","updated_at":"2026-05-18T00:51:06.634010+00:00"}