{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:5OSGNH2OLLBV7OC6SE3ZC6K6AU","short_pith_number":"pith:5OSGNH2O","schema_version":"1.0","canonical_sha256":"eba4669f4e5ac35fb85e913791795e051cf64c8de8adbb5a32219485d705af81","source":{"kind":"arxiv","id":"1505.00789","version":1},"attestation_state":"computed","paper":{"title":"The 0.3-30 keV Spectra of Powerful Starburst Galaxies: NuSTAR and Chandra Observations of NGC 3256 and NGC 3310","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"A.E. Hornschemeier, A. Ptak, A. Zezas, B.D. Lehmer, C.J. Hailey, D.R. Wik, D. Stern, F.A. Harrison, F.E. Christensen, J.B. Tyler, M. Yukita, S. Boggs, T.J. Maccarone, V. Antoniou, W.W. Craig, W.W. Zhang","submitted_at":"2015-05-04T20:01:15Z","abstract_excerpt":"We present nearly simultaneous Chandra and NuSTAR observations of two actively star-forming galaxies within 50 Mpc: NGC 3256 and NGC 3310. Both galaxies are detected by both Chandra and NuSTAR, which together provide the first-ever spectra of these two galaxies spanning 0.3-30 keV. The X-ray emission from both galaxies is spatially resolved by Chandra; we find that hot gas dominates the E < 1-3 keV emission while ultraluminous X-ray sources (ULXs) dominate at E > 1-3 keV. The NuSTAR galaxy-wide spectra of both galaxies follow steep power-law distributions with Gamma ~ 2.6 at E > 5-7 keV, simil"},"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":"1505.00789","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.GA","submitted_at":"2015-05-04T20:01:15Z","cross_cats_sorted":["astro-ph.CO","astro-ph.HE"],"title_canon_sha256":"b786eeb33d8d37fc7039381217e3c4502915b144163d9a55bb1070c885952311","abstract_canon_sha256":"f9be30fba447a2c6093d0368f53611622499bc840a3284d25d83713d9ee925e6"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T02:17:00.021183Z","signature_b64":"83IPsPcCtzUaKjjLMACbTfihyqUemKiiaYQmtvbd4MWrvxC08OpRsqepYrzwzX4Y07+lrwuO0f1dB8JPKGb0Cg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"eba4669f4e5ac35fb85e913791795e051cf64c8de8adbb5a32219485d705af81","last_reissued_at":"2026-05-18T02:17:00.020575Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T02:17:00.020575Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"The 0.3-30 keV Spectra of Powerful Starburst Galaxies: NuSTAR and Chandra Observations of NGC 3256 and NGC 3310","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.CO","astro-ph.HE"],"primary_cat":"astro-ph.GA","authors_text":"A.E. Hornschemeier, A. Ptak, A. Zezas, B.D. Lehmer, C.J. Hailey, D.R. Wik, D. Stern, F.A. Harrison, F.E. Christensen, J.B. Tyler, M. Yukita, S. Boggs, T.J. Maccarone, V. Antoniou, W.W. Craig, W.W. Zhang","submitted_at":"2015-05-04T20:01:15Z","abstract_excerpt":"We present nearly simultaneous Chandra and NuSTAR observations of two actively star-forming galaxies within 50 Mpc: NGC 3256 and NGC 3310. Both galaxies are detected by both Chandra and NuSTAR, which together provide the first-ever spectra of these two galaxies spanning 0.3-30 keV. The X-ray emission from both galaxies is spatially resolved by Chandra; we find that hot gas dominates the E < 1-3 keV emission while ultraluminous X-ray sources (ULXs) dominate at E > 1-3 keV. The NuSTAR galaxy-wide spectra of both galaxies follow steep power-law distributions with Gamma ~ 2.6 at E > 5-7 keV, simil"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1505.00789","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":"1505.00789","created_at":"2026-05-18T02:17:00.020664+00:00"},{"alias_kind":"arxiv_version","alias_value":"1505.00789v1","created_at":"2026-05-18T02:17:00.020664+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1505.00789","created_at":"2026-05-18T02:17:00.020664+00:00"},{"alias_kind":"pith_short_12","alias_value":"5OSGNH2OLLBV","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_16","alias_value":"5OSGNH2OLLBV7OC6","created_at":"2026-05-18T12:29:05.191682+00:00"},{"alias_kind":"pith_short_8","alias_value":"5OSGNH2O","created_at":"2026-05-18T12:29:05.191682+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/5OSGNH2OLLBV7OC6SE3ZC6K6AU","json":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU.json","graph_json":"https://pith.science/api/pith-number/5OSGNH2OLLBV7OC6SE3ZC6K6AU/graph.json","events_json":"https://pith.science/api/pith-number/5OSGNH2OLLBV7OC6SE3ZC6K6AU/events.json","paper":"https://pith.science/paper/5OSGNH2O"},"agent_actions":{"view_html":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU","download_json":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU.json","view_paper":"https://pith.science/paper/5OSGNH2O","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1505.00789&json=true","fetch_graph":"https://pith.science/api/pith-number/5OSGNH2OLLBV7OC6SE3ZC6K6AU/graph.json","fetch_events":"https://pith.science/api/pith-number/5OSGNH2OLLBV7OC6SE3ZC6K6AU/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU/action/timestamp_anchor","attest_storage":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU/action/storage_attestation","attest_author":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU/action/author_attestation","sign_citation":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU/action/citation_signature","submit_replication":"https://pith.science/pith/5OSGNH2OLLBV7OC6SE3ZC6K6AU/action/replication_record"}},"created_at":"2026-05-18T02:17:00.020664+00:00","updated_at":"2026-05-18T02:17:00.020664+00:00"}