{"paper":{"title":"Emulating galaxy and peculiar velocity clustering on non-linear scales","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"A.de la Macorra, A.Kremin, B.A. Weaver, C.Hahn, C.Howlett, C.Lamman, C.Ravoux, D.Bianchi, D.Brooks, D.Kirkby, D.Schlegel, D.Sprayberry, E.Gazta\\~naga, E.Sanchez, F.Prada, G.Gutierrez, G.Rossi, G.Tarl\\'e, H. Zou (DESI Collaboration), I.P\\'erez-R\\`afols, J.Aguilar, J.Bautista, J.E. Forero-Romero, J.Silber, L.Le Guillou, M.Ishak, M.Landriau, M.Manera, M.Schubnell, P.Doel, R.Joyce, R.Miquel, S.Ahlen, S.BenZvi, S.Ferraro, S.Gontcho A Gontcho, S.Nadathur, T.Claybaugh, T.Dumerchat, W.J. Percival","submitted_at":"2026-02-03T11:02:27Z","abstract_excerpt":"We explore the potential of cross-correlating galaxies and peculiar velocities on non-linear scales to enhance cosmological constraints. Leveraging the \\textsc{AbacusSummit} simulation suite and the halo occupation distribution (HOD) formalism, we train emulator models to describe the non-linear clustering of galaxies and velocities in redshift space. Our analysis demonstrates that combining galaxy and peculiar velocity clustering, provides tighter constraints on both HOD and cosmological parameters, particularly on $\\sigma_8$ and $w_0$. We further apply our models to realistic mock catalogues"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2602.03382","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2602.03382/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"}