{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2011:TWKAXOSSZ4TUQAE53E3SBUOPVB","short_pith_number":"pith:TWKAXOSS","schema_version":"1.0","canonical_sha256":"9d940bba52cf2748009dd93720d1cfa840d2b57a7082862c188677de05c544b1","source":{"kind":"arxiv","id":"1108.3330","version":2},"attestation_state":"computed","paper":{"title":"Orbital variation of the X-ray emission from the double neutron star binary J1537+1155","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"George G. Pavlov, Igor Volkov, Martin Durant, Oleg Kargaltsev","submitted_at":"2011-08-16T19:55:01Z","abstract_excerpt":"We observed the double neutron star binary (DNSB) containing PSR J1537+1155 (also known as B1534+12) with the Chandra X-ray Observatory. This is one of the two DNSBs detected in X-rays and the only one where a hint of variability with orbital phase was found (in the previous Chandra observation). Our follow-up observation supports the earlier result: the distribution of photon arrival times with orbital phase again shows a deficit around apastron. The significance of the deficit in the combined dataset exceeds 99%. Such an orbital light-curve suggests that the X-ray emission is seen only when "},"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":"1108.3330","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2011-08-16T19:55:01Z","cross_cats_sorted":[],"title_canon_sha256":"2d3381d23becdf07231ca05ed303d1170d9fb238033c6e3edbad2e4d88749338","abstract_canon_sha256":"98de8188b229ec02512774983494183e60b83899595f77c2957bd0c6c8bbfb81"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:00:53.103008Z","signature_b64":"1rStVr0CMdG1rkCqNsvxITtlntgL36l1V86saQ1+XnLD/y1j2n8gVJ73hDYChuuhafMeDRCaL1Gm4uzg9fO7Bw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"9d940bba52cf2748009dd93720d1cfa840d2b57a7082862c188677de05c544b1","last_reissued_at":"2026-05-18T02:00:53.102248Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:00:53.102248Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Orbital variation of the X-ray emission from the double neutron star binary J1537+1155","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"George G. Pavlov, Igor Volkov, Martin Durant, Oleg Kargaltsev","submitted_at":"2011-08-16T19:55:01Z","abstract_excerpt":"We observed the double neutron star binary (DNSB) containing PSR J1537+1155 (also known as B1534+12) with the Chandra X-ray Observatory. This is one of the two DNSBs detected in X-rays and the only one where a hint of variability with orbital phase was found (in the previous Chandra observation). Our follow-up observation supports the earlier result: the distribution of photon arrival times with orbital phase again shows a deficit around apastron. The significance of the deficit in the combined dataset exceeds 99%. Such an orbital light-curve suggests that the X-ray emission is seen only when "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1108.3330","kind":"arxiv","version":2},"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":"1108.3330","created_at":"2026-05-18T02:00:53.102378+00:00"},{"alias_kind":"arxiv_version","alias_value":"1108.3330v2","created_at":"2026-05-18T02:00:53.102378+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1108.3330","created_at":"2026-05-18T02:00:53.102378+00:00"},{"alias_kind":"pith_short_12","alias_value":"TWKAXOSSZ4TU","created_at":"2026-05-18T12:26:42.757692+00:00"},{"alias_kind":"pith_short_16","alias_value":"TWKAXOSSZ4TUQAE5","created_at":"2026-05-18T12:26:42.757692+00:00"},{"alias_kind":"pith_short_8","alias_value":"TWKAXOSS","created_at":"2026-05-18T12:26:42.757692+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/TWKAXOSSZ4TUQAE53E3SBUOPVB","json":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB.json","graph_json":"https://pith.science/api/pith-number/TWKAXOSSZ4TUQAE53E3SBUOPVB/graph.json","events_json":"https://pith.science/api/pith-number/TWKAXOSSZ4TUQAE53E3SBUOPVB/events.json","paper":"https://pith.science/paper/TWKAXOSS"},"agent_actions":{"view_html":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB","download_json":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB.json","view_paper":"https://pith.science/paper/TWKAXOSS","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1108.3330&json=true","fetch_graph":"https://pith.science/api/pith-number/TWKAXOSSZ4TUQAE53E3SBUOPVB/graph.json","fetch_events":"https://pith.science/api/pith-number/TWKAXOSSZ4TUQAE53E3SBUOPVB/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB/action/timestamp_anchor","attest_storage":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB/action/storage_attestation","attest_author":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB/action/author_attestation","sign_citation":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB/action/citation_signature","submit_replication":"https://pith.science/pith/TWKAXOSSZ4TUQAE53E3SBUOPVB/action/replication_record"}},"created_at":"2026-05-18T02:00:53.102378+00:00","updated_at":"2026-05-18T02:00:53.102378+00:00"}