{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2014:Q6WSAJN6US4NGK7MFTBRZSHXVA","short_pith_number":"pith:Q6WSAJN6","schema_version":"1.0","canonical_sha256":"87ad2025bea4b8d32bec2cc31cc8f7a824155d8fea6057c331780e724e614f3d","source":{"kind":"arxiv","id":"1401.7915","version":1},"attestation_state":"computed","paper":{"title":"Radial oscillations of neutral and charged hybrid stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.SR","authors_text":"Alessandro Brillante, Igor N. Mishustin","submitted_at":"2014-01-30T16:40:49Z","abstract_excerpt":"We construct stellar models of hadron stars and hybrid stars and calculate the frequencies of their lowest radial mode of vibration. Chandrasekhar's equation for radial oscillations is generalized for stars with internal electric fields and earlier versions of that generalization are simplified. For the hybrid stars a Gibbs construction is employed. It is found that the softening of the equation of state associated with the presence of deconfined quarks reduces the oscillation frequency. We show that a slight charge inbalance should lead to increased maximum mass, decreased central density and"},"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":"1401.7915","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.SR","submitted_at":"2014-01-30T16:40:49Z","cross_cats_sorted":["gr-qc"],"title_canon_sha256":"a1025e33913e2876d227bcc7a3d64f0494ec6ff591bf9707c137731b0b4671f2","abstract_canon_sha256":"15486be421d77b47d8f02bd23c75d81b7b2da83d18dff58db5b649504edde41d"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:52.262796Z","signature_b64":"yVZ/EOW+XHEiOOKaPEltOiMh59wKDiwHuNnmGMCA1h3N9UIO1dG1oM5/0dSV8UjpdYp6i6NjM+iqeOYOVV1eCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"87ad2025bea4b8d32bec2cc31cc8f7a824155d8fea6057c331780e724e614f3d","last_reissued_at":"2026-05-18T01:35:52.262021Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:52.262021Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Radial oscillations of neutral and charged hybrid stars","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["gr-qc"],"primary_cat":"astro-ph.SR","authors_text":"Alessandro Brillante, Igor N. Mishustin","submitted_at":"2014-01-30T16:40:49Z","abstract_excerpt":"We construct stellar models of hadron stars and hybrid stars and calculate the frequencies of their lowest radial mode of vibration. Chandrasekhar's equation for radial oscillations is generalized for stars with internal electric fields and earlier versions of that generalization are simplified. For the hybrid stars a Gibbs construction is employed. It is found that the softening of the equation of state associated with the presence of deconfined quarks reduces the oscillation frequency. We show that a slight charge inbalance should lead to increased maximum mass, decreased central density and"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1401.7915","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":"1401.7915","created_at":"2026-05-18T01:35:52.262154+00:00"},{"alias_kind":"arxiv_version","alias_value":"1401.7915v1","created_at":"2026-05-18T01:35:52.262154+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1401.7915","created_at":"2026-05-18T01:35:52.262154+00:00"},{"alias_kind":"pith_short_12","alias_value":"Q6WSAJN6US4N","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_16","alias_value":"Q6WSAJN6US4NGK7M","created_at":"2026-05-18T12:28:43.426989+00:00"},{"alias_kind":"pith_short_8","alias_value":"Q6WSAJN6","created_at":"2026-05-18T12:28:43.426989+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":1,"internal_anchor_count":1,"sample":[{"citing_arxiv_id":"2504.20347","citing_title":"Radial Oscillations of the HESS J1731-347 Compact Object via the Karmarkar Condition in Gravity","ref_index":63,"is_internal_anchor":true}]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA","json":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA.json","graph_json":"https://pith.science/api/pith-number/Q6WSAJN6US4NGK7MFTBRZSHXVA/graph.json","events_json":"https://pith.science/api/pith-number/Q6WSAJN6US4NGK7MFTBRZSHXVA/events.json","paper":"https://pith.science/paper/Q6WSAJN6"},"agent_actions":{"view_html":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA","download_json":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA.json","view_paper":"https://pith.science/paper/Q6WSAJN6","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1401.7915&json=true","fetch_graph":"https://pith.science/api/pith-number/Q6WSAJN6US4NGK7MFTBRZSHXVA/graph.json","fetch_events":"https://pith.science/api/pith-number/Q6WSAJN6US4NGK7MFTBRZSHXVA/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA/action/storage_attestation","attest_author":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA/action/author_attestation","sign_citation":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA/action/citation_signature","submit_replication":"https://pith.science/pith/Q6WSAJN6US4NGK7MFTBRZSHXVA/action/replication_record"}},"created_at":"2026-05-18T01:35:52.262154+00:00","updated_at":"2026-05-18T01:35:52.262154+00:00"}