Redshift-Space Distortions and f(z) from Group-Galaxy Correlations. Issue Volume 11:Issue S308(2015) (12th October 2016)

• Record Type: Journal Article
• Authors: Mohammad, F. G.; de la Torre, S.; Guzzo, L.; Bianchi, D.; Peacock, J. A.
• Editors: van de Weygaert, R.; Shandarin, S.; Saar, E.; Einasto, J.
• Is Part Of: Proceedings of the International Astronomical Union. Volume 11:Issue S308(2015)
• Page Start: 342
• Page End: 343
• Publication Date: 2016-10-12
• Subjects: Large-scale structure, -- cosmological parameters, -- clustering; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921316010139
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: We investigate the accuracy achievable on measurements of the the growth rate of structure f ( z ) using redshift-space distortions (RSD), when (a) these are measured on the group-galaxy cross correlation function; (b) the latter is expanded over a modified version of the conventional spherical armonics, " truncated multipole moments ". Simulation results give first indications that this combination can push systematic errors on f ( z ) below 3%, using scales r ⩾ 10 h −1 Mpc.