{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2018:5LV4UK6BB3BUOUKHWCTI4JFW6P","short_pith_number":"pith:5LV4UK6B","schema_version":"1.0","canonical_sha256":"eaebca2bc10ec3475147b0a68e24b6f3f53df98b6a8ea90999ba15277d614acf","source":{"kind":"arxiv","id":"1804.00829","version":1},"attestation_state":"computed","paper":{"title":"A Chandra Study of The Stellar X-ray Emissivity of Globular Clusters in M\\,31 Bulge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Xiao-jie Xu, Zhiyuan Li","submitted_at":"2018-04-03T05:22:28Z","abstract_excerpt":"The X-ray emissivity (i.e., luminosity per unit stellar mass) of globular clusters are an important indicator of their dynamical evolution history. Based on deep archival \\textit{Chandra} observations, we report a stacking analysis of 44 globular clusters (GCs) with 0.5-8 keV luminosities $L_{\\rm X} \\lesssim 10^{35} {\\rm~erg~s^{-1}}$ in the M\\,31 bulge, which are supposed to be dominated by cataclysmic variables (CVs) and coronally active binaries (ABs). We obtain a significant detection at $5\\sigma$ level in 0.5-8 keV band. The average X-ray luminosity per GC and the average X-ray emissivity "},"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":"1804.00829","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.HE","submitted_at":"2018-04-03T05:22:28Z","cross_cats_sorted":["astro-ph.GA"],"title_canon_sha256":"cb80c05beda6d3ce3690ee42b482a1ae0b27ff48270fbe6f08cee832ff5f3b91","abstract_canon_sha256":"8704344ee4cfac02042f33aa7014eb3055934bb7b8f88b6762068efc81fc6a82"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:18:48.673565Z","signature_b64":"pLkawQtLy9pkhjgbR0A87BHHknWjngI1+a02VlTV9QBQvk8/jv7OZV490lVK5qC98wCRaAEqIWCkm3g3of3QCg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eaebca2bc10ec3475147b0a68e24b6f3f53df98b6a8ea90999ba15277d614acf","last_reissued_at":"2026-05-18T00:18:48.672816Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:18:48.672816Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"A Chandra Study of The Stellar X-ray Emissivity of Globular Clusters in M\\,31 Bulge","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.GA"],"primary_cat":"astro-ph.HE","authors_text":"Xiao-jie Xu, Zhiyuan Li","submitted_at":"2018-04-03T05:22:28Z","abstract_excerpt":"The X-ray emissivity (i.e., luminosity per unit stellar mass) of globular clusters are an important indicator of their dynamical evolution history. Based on deep archival \\textit{Chandra} observations, we report a stacking analysis of 44 globular clusters (GCs) with 0.5-8 keV luminosities $L_{\\rm X} \\lesssim 10^{35} {\\rm~erg~s^{-1}}$ in the M\\,31 bulge, which are supposed to be dominated by cataclysmic variables (CVs) and coronally active binaries (ABs). We obtain a significant detection at $5\\sigma$ level in 0.5-8 keV band. The average X-ray luminosity per GC and the average X-ray emissivity "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1804.00829","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":"1804.00829","created_at":"2026-05-18T00:18:48.672945+00:00"},{"alias_kind":"arxiv_version","alias_value":"1804.00829v1","created_at":"2026-05-18T00:18:48.672945+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1804.00829","created_at":"2026-05-18T00:18:48.672945+00:00"},{"alias_kind":"pith_short_12","alias_value":"5LV4UK6BB3BU","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_16","alias_value":"5LV4UK6BB3BUOUKH","created_at":"2026-05-18T12:32:08.215937+00:00"},{"alias_kind":"pith_short_8","alias_value":"5LV4UK6B","created_at":"2026-05-18T12:32:08.215937+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/5LV4UK6BB3BUOUKHWCTI4JFW6P","json":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P.json","graph_json":"https://pith.science/api/pith-number/5LV4UK6BB3BUOUKHWCTI4JFW6P/graph.json","events_json":"https://pith.science/api/pith-number/5LV4UK6BB3BUOUKHWCTI4JFW6P/events.json","paper":"https://pith.science/paper/5LV4UK6B"},"agent_actions":{"view_html":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P","download_json":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P.json","view_paper":"https://pith.science/paper/5LV4UK6B","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1804.00829&json=true","fetch_graph":"https://pith.science/api/pith-number/5LV4UK6BB3BUOUKHWCTI4JFW6P/graph.json","fetch_events":"https://pith.science/api/pith-number/5LV4UK6BB3BUOUKHWCTI4JFW6P/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P/action/storage_attestation","attest_author":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P/action/author_attestation","sign_citation":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P/action/citation_signature","submit_replication":"https://pith.science/pith/5LV4UK6BB3BUOUKHWCTI4JFW6P/action/replication_record"}},"created_at":"2026-05-18T00:18:48.672945+00:00","updated_at":"2026-05-18T00:18:48.672945+00:00"}