The 6dF galaxy survey: Fundamental Plane data

Lachlan A. Campbell*, John R. Lucey, Matthew Colless, D. Heath Jones, Christopher M. Springob, Christina Magoulas, Robert N. Proctor, Jeremy R. Mould, Mike A. Read, Sarah Brough, Tom Jarrett, Alex I. Merson, Philip Lah, Florian Beutler, Michelle E. Cluver, Quentin A. Parker

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

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Abstract

We report the 6dFGS Fundamental Plane (6dFGSv) catalogue that is used to estimate distances and peculiar velocities for nearly 9000 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 12.9Å-1 for a sample of 11 315 galaxies; the median velocity dispersion is 163 km s-1 and the median measurement error is 12.9 per cent. The photometric Fundamental Plane (FP) parameters (effective radii and surface brightnesses) are determined from the JHK 2MASS images for 11 102 galaxies. Comparison of the independent J-and K-band measurements implies that the average uncertainty in XFP, the combined photometric parameter that enters the FP, is 0.013 dex (3 per cent) for each band. Visual classification of morphologies was used to select a sample of nearly 9000 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.

Original languageEnglish
Article numberstu1198
Pages (from-to)1231-1251
Number of pages21
JournalMonthly Notices of the Royal Astronomical Society
Volume443
Issue number2
DOIs
Publication statusPublished - 11 Sep 2014

Bibliographical note

Copyright 2014 The Authors. First published in Monthly Notices of the Royal Astronomical Society, 443(2), 1231-1251. The original publication is available at http://doi.org/10.1093/mnras/stu1198, published by Oxford University Press on behalf of the Royal Astronomical Society. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

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