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Title

Galaxy and Mass Assembly (GAMA): survey diagnostics and core data release

Author(s)

Driver, S. P.;  Hill, D. T.;  Kelvin, L. S.;  Robotham, A. S. G.;  Liske, J.;  Norberg, P.;  Baldry, I. K.;  Bamford, S. P.;  Hopkins, A. M.;  Loveday, J.;  Peacock, J. A.;  Andrae, E.;  Bland-Hawthorn, J.;  Brough, S.;  Brown, M. J. I.;  Cameron, E.;  Ching, J. H. Y.;  Colless, M.;  Conselice, C. J.;  Croom, S. M.;  Cross, N. J. G.;  De Propris, R.;  Dye, S.;  Drinkwater, M. J.;  Ellis, S.;  Graham, Alister W.;  Grootes, M. W.;  Gunawardhana, M.;  Jones, D. H.;  van Kampen, E.;  Maraston, C.;  Nichol, R. C.;  Parkinson, H. R.;  Phillipps, S.;  Pimbblet, K.;  Popescu, C. C.;  Prescott, M.;  Roseboom, I. G.;  Sadler, E. M.;  Sansom, A. E.;  Sharp, R. G.;  Smith, D. J. B.;  Taylor, E.;  Thomas, D.;  Tuffs, R. J.;  Wijesinghe, D.;  Dunne, L.;  Frenk, C. S.;  Jarvis, M. J.;  Madore, B. F.;  Meyer, M. J.;  Seibert, M.;  Staveley-Smith, L.;  Sutherland, W. J.;  Warren, S. J.

Abstract

The Galaxy and Mass Assembly (GAMA) survey has been operating since 2008 February on the 3.9-m Anglo-Australian Telescope using the AAOmega fibre-fed spectrograph facility to acquire spectra with a resolution of R≈ 1300 for 120 862 Sloan Digital Sky Survey selected galaxies. The target catalogue constitutes three contiguous equatorial regions centred at 9h (G09), 12h (G12) and 14.5h (G15) each of 12 × 4 deg2 to limiting fluxes of rpet < 19.4, rpet < 19.8 and rpet < 19.4 mag, respectively (and additional limits at other wavelengths). Spectra and reliable redshifts have been acquired for over 98 per cent of the galaxies within these limits. Here we present the survey footprint, progression, data reduction, redshifting, re-redshifting, an assessment of data quality after 3 yr, additional image analysis products (including ugrizYJHK photometry, Sérsic profiles and photometric redshifts), observing mask and construction of our core survey catalogue (GamaCore). From this we create three science-ready catalogues: GamaCoreDR1 for public release, which includes data acquired during year 1 of operations within specified magnitude limits (2008 February to April); GamaCoreMainSurvey containing all data above our survey limits for use by the GAMA Team and collaborators; and GamaCoreAtlasSV containing year 1, 2 and 3 data matched to Herschel-ATLAS science demonstration data. These catalogues along with the associated spectra, stamps and profiles can be accessed via the GAMA website: http://www.gama-survey.org/.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Information and Communication Technologies. Centre for Astrophysics and Supercomputing

Source

Monthly Notices of the Royal Astronomical Society, Vol. 413, no. 2 (May 2011), pp. 971-995

Publication year

2011

FOR Code(s)

0201 Astronomical and Space Sciences

Keyword(s)

Fudamental parameters;  Galaxy distances;  Galaxy redshifts;  Galaxy surveys;  Statistics

Publisher

Wiley-Blackwell Publishing

ISSN

0035-8711

Publisher URL

http://dx.doi.org/10.1111/j.1365-2966.2010.18188.x

Publisher URL

http://www.gama-survey.org/

Copyright

Copyright © 2011 The Authors. Journal compilation copyright © 2011 Royal Astronomical Society. The accepted manuscript of the paper is reproduced here in accordance with the copyright policy of the publisher. The definitive publication is available at www.interscience.wiley.com.

Additional information

The authors acknowledge support from the STFC, ARC, Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the US Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England.

Full text

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