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

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 thes...

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Bibliographic Details
Main Authors: Owers, M. S., Green, A. W., Helmich, E., de Jong, J. T. A., Kuijken, K., Mahajan, S., McFarland, J., Pracy, M. B., Robotham, A. G. S., Sikkema, G., Sweet, Sarah, Allen, J. T., Taylor, Edward, Verdoes Kleijn, G., Bauer, A. E., Bland-Hawthorn, J., Brough, S., Colless, M., Couch, Warrick, Davies, R. L., Drinkwater, M. J., Goodwin, M., Baldry, I., Hopkins, A. M., Konstantopoulos, I. S., Foster, C., Lawrence, J. S., Lorente, N. P. F., Medling, A. M., Metcalfe, N., Richards, S. N., van de Sande, J., Scott, N., Bryant, J. J., Shanks, T., Sharp, R., Thomas, A. D., Tonini, C., Cecil, G. N., Cortese, Luca, Croom, S. M., Driver, S. P., Fogarty, L. M. R.
Format: Text
Language:unknown
Published: Swinburne 2024
Subjects:
Cosmology and extragalactic astronomy
sami
Online Access:https://dx.doi.org/10.25916/sut.26229782
https://figshare.swinburne.edu.au/articles/journal_contribution/The_SAMI_Galaxy_Survey_The_cluster_redshift_survey_target_selection_and_cluster_properties/26229782
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Summary: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 3.9-m Anglo-Australian Telescope. The redshift survey is used to determine cluster membership and to characterize 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 (∼94 per cent) for rpetro ≤ 19.4 and cluster-centric distances R < 2R200. We use the confirmed cluster member positions and redshifts to determine cluster velocity dispersion, R200, virial and caustic masses, as well as cluster structure. The clusters have virial masses 14.25 ≤ log(M200/M⊙) ≤ 15.19. ...

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