{"paper":{"title":"The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: a multi-tracer analysis in Fourier space for measuring the cosmic structure growth and expansion rate","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Anand Raichoor, Arman Shafieloo, Arnaud de Mattia, Ashley J. Ross, Atsushi Taruya, Cheng Zhao, Chia-Hsun Chuang, Donald P. Schneider, Etienne Burtin, Eva-Maria Mueller, Gong-Bo Zhao, Graziano Rossi, Hector Gil-Marin, Helion du Mas des Bourboux, Jean-Paul Kneib, Jeffrey A. Newman, Jiamin Hou, John A. Peacock, Julian E. Bautista, Kazuya Koyama, Kyle S. Dawson, Shadab Alam, Vanina Ruhlmann-Kleider, Weibing Zhang, Will J. Percival, Yuting Wang","submitted_at":"2020-07-17T14:10:08Z","abstract_excerpt":"We perform a joint BAO and RSD analysis using the eBOSS DR16 LRG and ELG samples in the redshift range of $z\\in[0.6,1.1]$, and detect a RSD signal from the cross power spectrum at a $\\sim4\\sigma$ confidence level, i.e., $f\\sigma_8=0.317\\pm0.080$ at $z_{\\rm eff}=0.77$. Based on the chained power spectrum, which is a new development in this work to mitigate the angular systematics, we measurement the BAO distances and growth rate simultaneously at two effective redshifts, namely, $D_{\\rm M}/r_{\\rm d} \\ (z=0.70)=17.96\\pm0.51, \\ D_{\\rm H}/r_{\\rm d} \\ (z=0.70)=21.22\\pm1.20, \\ f\\sigma_8 \\ (z=0.70) ="},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.09011","kind":"arxiv","version":3},"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/2007.09011/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"}