The SAMI Galaxy Survey: the cluster redshift survey, target selection and cluster properties ...

• Main Authors: Verdoes Kleijn, Bauer, Drinkwater, Richards, Brough, Davies, Tonini, Konstantopoulos, Thomas, Couch, Owers, McFarland, Sharp, de Jong, Baldry, Taylor, Mahajan, Lawrence, Fogarty, Goodwin, Foster, Cecil, Scott, Lorente, van de Sande, Hopkins, Colless, Bryant, Shanks, Helmich, Pracy, Metcalfe, Driver, Bland-Hawthorn, Sikkema, Cortese, Croom, Medling, Green, Robotham, Allen, Kuijken, Sweet
• Format: Text
• Language: English
• Published: The University of North Carolina at Chapel Hill University Libraries 2017
• Subjects: sami
• Online Access: https://dx.doi.org/10.17615/j6e8-2z49; https://cdr.lib.unc.edu/concern/articles/9593v147d

We describe the selection of galaxies targeted in eight low redshift clusters (APMCC0917, A168, A4038, EDCC442, A3880, A2399, A119 and A85; $0.029 < z < 0.058$) as part of the Sydney-AAO Multi-Object integral field Spectrograph Galaxy Survey (SAMI-GS). We have conducted a redshift survey of these clusters using the AAOmega multi-object spectrograph on the 3.9m Anglo-Australian Telescope. The redshift survey is used to determine cluster membership and to characterise the dynamical properties of the clusters. In combination with existing data, the survey resulted in 21,257 reliable redshift measurements and 2899 confirmed cluster member galaxies. Our redshift catalogue has a high spectroscopic completeness ($\sim 94\%$) for $r_{\rm petro} \leq 19.4$ and clustercentric distances $R< 2\rm{R}_{200}$. We use the confirmed cluster member positions and redshifts to determine cluster velocity dispersion, $\rm{R}_{200}$, virial and caustic masses, as well as cluster structure. The clusters have virial masses ...