{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2020:Z7ESCPKMQNQI437NT25NSWBKGD","short_pith_number":"pith:Z7ESCPKM","schema_version":"1.0","canonical_sha256":"cfc9213d4c83608e6fed9ebad9582a30cb079de44068d3dd70eececcda809e0c","source":{"kind":"arxiv","id":"2008.05970","version":2},"attestation_state":"computed","paper":{"title":"Detection Limits of Low-mass, Long-period Exoplanets Using Gaussian Processes Applied to HARPS-N Solar RVs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Collier Cameron, A. Ghedina, A. Mortier, A. Sozzetti, C. A. Watson, C-H. Li, D. Charbonneau, D. F. Phillips, D. Sasselov, D. W. Latham, E. Molinari, E. Poretti, F. Pepe, G. Micela, H. M. Cegla, J. Maldonado, K. Rice, L. Malavolta, M. Cecconi, M. Gonzalez, M. Lodi, M. L\\'opez-Morales, N. Buchschacher, N. Langellier, R. Cosentino, R. D. Haywood, R. L. Walsworth, S. H. Saar, S. Thompson, S. Udry, T. W. Milbourne, X. Dumusque","submitted_at":"2020-08-13T15:36:48Z","abstract_excerpt":"Radial velocity (RV) searches for Earth-mass exoplanets in the habitable zone around Sun-like stars are limited by the effects of stellar variability on the host star. In particular, suppression of convective blueshift and brightness inhomogeneities due to photospheric faculae/plage and starspots are the dominant contribution to the variability of such stellar RVs. Gaussian process (GP) regression is a powerful tool for statistically modeling these quasi-periodic variations. We investigate the limits of this technique using 800 days of RVs from the solar telescope on the High Accuracy Radial v"},"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":"2008.05970","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"astro-ph.EP","submitted_at":"2020-08-13T15:36:48Z","cross_cats_sorted":["astro-ph.IM","astro-ph.SR"],"title_canon_sha256":"97e65734a673f85c3cf999b9a144e11965fbc1192ff415b29d2f753bbdfc3057","abstract_canon_sha256":"3e24f7ee3b26de489e8307542afdb615955b4f97b6ccd72db1c1f6e9548a1810"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T02:45:48.435967Z","signature_b64":"5vKXf7pfPkh5HrK/u6xt6QQVWGrasqnLkuYZ/HyPgjWNpsDCLRC1XsiExZ/hvePJ1nKhJhVBwUkmkjKbTJxCCw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"cfc9213d4c83608e6fed9ebad9582a30cb079de44068d3dd70eececcda809e0c","last_reissued_at":"2026-07-05T02:45:48.435437Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T02:45:48.435437Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Detection Limits of Low-mass, Long-period Exoplanets Using Gaussian Processes Applied to HARPS-N Solar RVs","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["astro-ph.IM","astro-ph.SR"],"primary_cat":"astro-ph.EP","authors_text":"A. Collier Cameron, A. Ghedina, A. Mortier, A. Sozzetti, C. A. Watson, C-H. Li, D. Charbonneau, D. F. Phillips, D. Sasselov, D. W. Latham, E. Molinari, E. Poretti, F. Pepe, G. Micela, H. M. Cegla, J. Maldonado, K. Rice, L. Malavolta, M. Cecconi, M. Gonzalez, M. Lodi, M. L\\'opez-Morales, N. Buchschacher, N. Langellier, R. Cosentino, R. D. Haywood, R. L. Walsworth, S. H. Saar, S. Thompson, S. Udry, T. W. Milbourne, X. Dumusque","submitted_at":"2020-08-13T15:36:48Z","abstract_excerpt":"Radial velocity (RV) searches for Earth-mass exoplanets in the habitable zone around Sun-like stars are limited by the effects of stellar variability on the host star. In particular, suppression of convective blueshift and brightness inhomogeneities due to photospheric faculae/plage and starspots are the dominant contribution to the variability of such stellar RVs. Gaussian process (GP) regression is a powerful tool for statistically modeling these quasi-periodic variations. We investigate the limits of this technique using 800 days of RVs from the solar telescope on the High Accuracy Radial v"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2008.05970","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2008.05970/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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":"2008.05970","created_at":"2026-07-05T02:45:48.435501+00:00"},{"alias_kind":"arxiv_version","alias_value":"2008.05970v2","created_at":"2026-07-05T02:45:48.435501+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2008.05970","created_at":"2026-07-05T02:45:48.435501+00:00"},{"alias_kind":"pith_short_12","alias_value":"Z7ESCPKMQNQI","created_at":"2026-07-05T02:45:48.435501+00:00"},{"alias_kind":"pith_short_16","alias_value":"Z7ESCPKMQNQI437N","created_at":"2026-07-05T02:45:48.435501+00:00"},{"alias_kind":"pith_short_8","alias_value":"Z7ESCPKM","created_at":"2026-07-05T02:45:48.435501+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/Z7ESCPKMQNQI437NT25NSWBKGD","json":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD.json","graph_json":"https://pith.science/api/pith-number/Z7ESCPKMQNQI437NT25NSWBKGD/graph.json","events_json":"https://pith.science/api/pith-number/Z7ESCPKMQNQI437NT25NSWBKGD/events.json","paper":"https://pith.science/paper/Z7ESCPKM"},"agent_actions":{"view_html":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD","download_json":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD.json","view_paper":"https://pith.science/paper/Z7ESCPKM","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=2008.05970&json=true","fetch_graph":"https://pith.science/api/pith-number/Z7ESCPKMQNQI437NT25NSWBKGD/graph.json","fetch_events":"https://pith.science/api/pith-number/Z7ESCPKMQNQI437NT25NSWBKGD/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD/action/timestamp_anchor","attest_storage":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD/action/storage_attestation","attest_author":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD/action/author_attestation","sign_citation":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD/action/citation_signature","submit_replication":"https://pith.science/pith/Z7ESCPKMQNQI437NT25NSWBKGD/action/replication_record"}},"created_at":"2026-07-05T02:45:48.435501+00:00","updated_at":"2026-07-05T02:45:48.435501+00:00"}