{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:1999:THPYBN6DLOJC2FL3AWKRFL5XLI","short_pith_number":"pith:THPYBN6D","schema_version":"1.0","canonical_sha256":"99df80b7c35b922d157b059512afb75a3d8c5c624495d08a4d0dee9d220580f9","source":{"kind":"arxiv","id":"astro-ph/9902075","version":1},"attestation_state":"computed","paper":{"title":"BeppoSAX LECS background subtraction techniques","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) University of Oxford, (3) MPE/Garching, (4) BeppoSAX SDC, 5) ((1) ESA/ESTEC, (5) Southampton University), A. Malizia (4, A.N. Parmar (1), A. Orr (1), D. Ricci (4), M. Guainazzi (1), M. J. Freyberg (3), N. Shane (1, T. Oosterbroek (1)","submitted_at":"1999-02-04T15:36:03Z","abstract_excerpt":"We present 3 methods for the subtraction of non-cosmic and unresolved cosmic backgrounds observed by the Low-Energy Concentrator Spectrometer (LECS) on-board BeppoSAX. Removal of these backgrounds allows a more accurate modeling of the spectral data from point and small-scale extended sources. At high (>|25| degree) galactic latitudes, subtraction using a standard background spectrum works well. At low galactic latitudes, or in complex regions of the X-ray sky, two alternative methods are presented. The first uses counts obtained from two semi-annuli near the outside of the LECS field of view "},"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/9902075","kind":"arxiv","version":1},"metadata":{"license":"","primary_cat":"astro-ph","submitted_at":"1999-02-04T15:36:03Z","cross_cats_sorted":[],"title_canon_sha256":"76d4084a214d409e4f672e944ff6b632d276dfb302f40045d67f38f97612dbe1","abstract_canon_sha256":"6b5dd1547ae544f4ff0044c65893770d896bd0c87fc29ee4d52341634e86bc18"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:48:10.509135Z","signature_b64":"idl1Xpo4rgpAu+GMFrsOfzcw+W8YM3Z2S+rJWiz8J9hrvYOcO3JsXZUh1nb/xU9Svqe0zafvQGaDi+lZXxJtBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"99df80b7c35b922d157b059512afb75a3d8c5c624495d08a4d0dee9d220580f9","last_reissued_at":"2026-05-18T00:48:10.508573Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:48:10.508573Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"BeppoSAX LECS background subtraction techniques","license":"","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"2), (2) University of Oxford, (3) MPE/Garching, (4) BeppoSAX SDC, 5) ((1) ESA/ESTEC, (5) Southampton University), A. Malizia (4, A.N. Parmar (1), A. Orr (1), D. Ricci (4), M. Guainazzi (1), M. J. Freyberg (3), N. Shane (1, T. Oosterbroek (1)","submitted_at":"1999-02-04T15:36:03Z","abstract_excerpt":"We present 3 methods for the subtraction of non-cosmic and unresolved cosmic backgrounds observed by the Low-Energy Concentrator Spectrometer (LECS) on-board BeppoSAX. Removal of these backgrounds allows a more accurate modeling of the spectral data from point and small-scale extended sources. At high (>|25| degree) galactic latitudes, subtraction using a standard background spectrum works well. At low galactic latitudes, or in complex regions of the X-ray sky, two alternative methods are presented. The first uses counts obtained from two semi-annuli near the outside of the LECS field of view "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"astro-ph/9902075","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":"astro-ph/9902075","created_at":"2026-05-18T00:48:10.508659+00:00"},{"alias_kind":"arxiv_version","alias_value":"astro-ph/9902075v1","created_at":"2026-05-18T00:48:10.508659+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.astro-ph/9902075","created_at":"2026-05-18T00:48:10.508659+00:00"},{"alias_kind":"pith_short_12","alias_value":"THPYBN6DLOJC","created_at":"2026-05-18T12:25:49.631198+00:00"},{"alias_kind":"pith_short_16","alias_value":"THPYBN6DLOJC2FL3","created_at":"2026-05-18T12:25:49.631198+00:00"},{"alias_kind":"pith_short_8","alias_value":"THPYBN6D","created_at":"2026-05-18T12:25:49.631198+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/THPYBN6DLOJC2FL3AWKRFL5XLI","json":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI.json","graph_json":"https://pith.science/api/pith-number/THPYBN6DLOJC2FL3AWKRFL5XLI/graph.json","events_json":"https://pith.science/api/pith-number/THPYBN6DLOJC2FL3AWKRFL5XLI/events.json","paper":"https://pith.science/paper/THPYBN6D"},"agent_actions":{"view_html":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI","download_json":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI.json","view_paper":"https://pith.science/paper/THPYBN6D","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=astro-ph/9902075&json=true","fetch_graph":"https://pith.science/api/pith-number/THPYBN6DLOJC2FL3AWKRFL5XLI/graph.json","fetch_events":"https://pith.science/api/pith-number/THPYBN6DLOJC2FL3AWKRFL5XLI/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI/action/timestamp_anchor","attest_storage":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI/action/storage_attestation","attest_author":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI/action/author_attestation","sign_citation":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI/action/citation_signature","submit_replication":"https://pith.science/pith/THPYBN6DLOJC2FL3AWKRFL5XLI/action/replication_record"}},"created_at":"2026-05-18T00:48:10.508659+00:00","updated_at":"2026-05-18T00:48:10.508659+00:00"}