The 6dF Galaxy Survey: Final Redshift Release (DR3) and Southern Large-Scale Structures
Abstract
We report the final redshift release of the 6dF Galaxy Survey, a combined redshift and peculiar velocity survey over the southern sky (|b|>10 deg). Its 136,304 spectra have yielded 110,256 new extragalactic redshifts and a new catalogue of 125,071 galaxies making near-complete samples with (K, H, J, r_F, b_J) <= (12.65, 12.95, 13.75, 15.60, 16.75). The median redshift of the survey is 0.053. Survey data, including images, spectra, photometry and redshifts, are available through an online database. We describe changes to the information in the database since earlier interim data releases. Future releases will include velocity dispersions, distances and peculiar velocities for the brightest early-type galaxies, comprising about 10% of the sample. Here we provide redshift maps of the southern local universe with z<=0.1, showing nearby large-scale structures in hitherto unseen detail. A number of regions known previously to have a paucity of galaxies are confirmed as significantly underdense regions. The URL of the 6dFGS database is http://www-wfau.roe.ac.uk/6dFGS
Cite
@article{arxiv.0903.5451,
title = {The 6dF Galaxy Survey: Final Redshift Release (DR3) and Southern Large-Scale Structures},
author = {D. Heath Jones and Mike A. Read and Will Saunders and Matthew Colless and Tom Jarrett and Quentin Parker and Anthony Fairall and Thomas Mauch and Elaine Sadler and Fred Watson and Donna Burton and Lachlan Campbell and Paul Cass and Scott Croom and John Dawe and Kristin Fiegert and Leela Frankcombe and Malcolm Hartley and John Huchra and Dionne James and Emma Kirby and Ofer Lahav and John Lucey and Gary Mamon and Lesa Moore and Bruce Peterson and Sayuri Prior and Dominique Proust and Ken Russell and Vicky Safouris and Ken-ichi Wakamatsu and Eduard Westra and Mary Williams},
journal= {arXiv preprint arXiv:0903.5451},
year = {2015}
}
Comments
18 pages, 9 figures, submitted to MNRAS. Higher resolution version available from http://www.aao.gov.au/6dFGS/Publications