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The observational data were obtained with the VLBI Space Observatory Programme (VSOP) at 1.6 and 5 GHz, supplemented by other multi-frequency observations with the Very Long Baseline Array (VLBA; 2.3, 8.4, and 15 GHz) and the Very Large Array (VLA; 1.4, 5, 15, and 43 GHz). The observations span a period of 7 years. We find that the luminous high-redshift quasar PKS 1402+044 has a pronounced \"core-jet\" m"},"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":"0810.0077","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph","submitted_at":"2008-10-01T05:26:00Z","cross_cats_sorted":[],"title_canon_sha256":"05d517cd063ad788fcff959282b277ba285b683bdd319114db20c3b5248007f6","abstract_canon_sha256":"d307aa4a28546bf7f53ab452ea4e4d4d916dab8e6171e2e096ce9f8e93817214"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T04:14:36.352024Z","signature_b64":"2rrCor/VoeGDDAfQInQmWdlEI1y1dKof1dz/7lMe2ViAG9zyyrRpd6Ny3bZtplEXX/+FP+S5eERjFVx9I83HCA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"3f9b57479449d0c77a252d9fbfd8a91f1f61d728e13981d780a6d606449963f7","last_reissued_at":"2026-05-18T04:14:36.351476Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T04:14:36.351476Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Multi-frequency investigation of the parsec- and kilo-parsec-scale radio structures in high-redshift quasar PKS 1402+044","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph","authors_text":"A.P. Lobanov, J. Yang, L.I. Gurvits, S. Frey, X.-Y. Hong","submitted_at":"2008-10-01T05:26:00Z","abstract_excerpt":"We investigate the frequency-dependent radio properties of the jet of the luminous high-redshift (z = 3.2) radio quasar PKS 1402+044 (J1405+0415) by means of radio interferometric observations. The observational data were obtained with the VLBI Space Observatory Programme (VSOP) at 1.6 and 5 GHz, supplemented by other multi-frequency observations with the Very Long Baseline Array (VLBA; 2.3, 8.4, and 15 GHz) and the Very Large Array (VLA; 1.4, 5, 15, and 43 GHz). The observations span a period of 7 years. 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