English

The 6dF Galaxy Survey: Fundamental Plane Data

Astrophysics of Galaxies 2015-06-22 v1 Cosmology and Nongalactic Astrophysics

Abstract

We report the 6dFGS Fundamental Plane (6dFGSv) catalogue that is used to estimate distances and peculiar velocities for nearly 9,000 early-type galaxies in the local (z<<0.055) universe. Velocity dispersions are derived by cross-correlation from 6dF V-band spectra with typical S/N of 12.9 \AA1^{-1} for a sample of 11,315 galaxies; the median velocity dispersion is 163 kms1^{-1} and the median measurement error is 12.9%. The photometric Fundamental Plane (FP) parameters (effective radii and surface brightnesses) are determined from the JHKJHK 2MASS images for 11,102 galaxies. Comparison of the independent JJ- and KK-band measurements implies that the average uncertainty in XFPX_{FP}, the combined photometric parameter that enters the FP, is 0.013 dex (3%) for each band. Visual classification of morphologies was used to select a sample of nearly 9,000 early-type galaxies that form 6dFGSv. This catalogue has been used to study the effects of stellar populations on galaxy scaling relations, to investigate the variation of the FP with environment and galaxy morphology, to explore trends in stellar populations through, along and across the FP, and to map and analyse the local peculiar velocity field.

Keywords

Cite

@article{arxiv.1406.4867,
  title  = {The 6dF Galaxy Survey: Fundamental Plane Data},
  author = {Lachlan A. Campbell and John R. Lucey and Matthew Colless and D. Heath Jones and Christopher M. Springob and Christina Magoulas and Robert N. Proctor and Jeremy R. Mould and Mike A. Read and Sarah Brough and Tom Jarrett and Alex I. Merson and Philip Lah and Florian Beutler and Michelle E. Cluver and Quentin A. Parker},
  journal= {arXiv preprint arXiv:1406.4867},
  year   = {2015}
}

Comments

21 pages, 25 figures, 9 tables, accepted for publication in MNRAS, the full versions of Tables 2, 4, 8 and 9 will be available in the MNRAS publication as online Supporting Information

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