The 6dF Galaxy Survey: Final redshift release (DR3) and southern large-scale structures

David Jones, Mike Read, W Saunders, Matthew Colless, T Jarrett, Quentin Parker, Anthony Fairall, T Mauch, Elaine Sadler, Fred Watson, Donna Burton, Lachlan Campbell, Paul Cass, Scott Croom, John Dawe, Kristin Fiegert, Leela Frankcombe, Malcolm Hartley, John Huchra, Dionne JamesEmma Kirby, Ofer Lahav, John Lucey, Gary Mamon, Lesa Moore, Bruce Peterson, Sayuri Prior, Dominique Proust, Ken Russell, Vicky Safouris, Ken-ichi Wakamatsu, Eduard Westra, Mary Williams

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We report the final redshift release of the 6dF Galaxy Survey (6dFGS), a combined redshift and peculiar velocity survey over the southern sky ( b > 10A?). 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, rF, bJ) a?? (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 data base. We describe changes to the information in the data base since earlier interim data releases. Future releases will include velocity dispersions, distances and peculiar velocities for the brightest early-type galaxies, comprising about 10 per cent of the sample. Here we provide redshift maps of the southern local Universe with z a?? 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.
Original languageEnglish
Pages (from-to)683 - 698
Number of pages16
JournalMonthly Notices of the Royal Astronomical Society
Issue number2
Publication statusPublished - 2009
Externally publishedYes

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