The 6dF Galaxy Survey : peculiar velocity field and cosmography

  title={The 6dF Galaxy Survey : peculiar velocity field and cosmography},
  author={Christopher M. Springob and Christina Magoulas and Matthew Colless and Jeremy Mould and Pirin Erdoğdu and D. Heath Jones and John R Lucey and Lachlan A. Campbell and Christopher J. Fluke Icrar University of Western Australia and Caastro and Australian Astronomical Observatory and University of Melbourne and University of Cape Town and The Australian National University and Swinburne University and Australian College of Kuwait and M University and University of Durham},
  journal={Monthly Notices of the Royal Astronomical Society},
We derive peculiar velocities for the 6dF Galaxy Survey (6dFGS) and describe the velocity field of the nearby ( z< 0.055) Southern hemisphere. The survey comprises 8885 galaxies for which we have previously reported Fundamental Plane data. We obtain peculiar velocity probability distributions for the redshift-space positions of each of these galaxies using a Bayesian approach. Accounting for selection bias, we find that the logarithmic distance uncertainty is 0.11 dex, corresponding to 26 per… 
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