J. T. Allen, S. M. Croom, I. S. Konstantopoulos, J. J. Bryant, R. Sharp, G. N. Cecil, L. M. R. Fogarty, C. Foster, A. W. Green, I.-T. Ho, M. S. Owers, A. L. Schaefer, N. Scott, A. E. Bauer, I. Baldry, L. A. Barnes, J. Bland-Hawthorn, J. V. Bloom, S. Brough, M. Colless, L. Cortese, W. J. Couch, M. J. Drinkwater, S. P. Driver, M. Goodwin, M. L. P. Gunawardhana, E. J. Hampton, A. M. Hopkins, L. J. Kewley, J. S. Lawrence, S. G. Leon-Saval, J. Liske, A. R. Lopez-Sanchez, A. M. Medling, J. Mould, P. Norberg, Q. A. Parker, C. Power, M. B. Pracy, S. N. Richards, A. S. G. Robotham, S. M. Sweet, E. N. Taylor, A. D. Thomas, C. Tonini, C. J. Walcher
We present the Early Data Release (EDR) of the Sydney–AAO Multi-object Integral field spectrograph (SAMI) Galaxy Survey. The SAMI Galaxy Survey is an ongoing integral field spectroscopic survey of ∼3400 low-redshift (z < 0.12) galaxies, covering galaxies in the field and in groups within the Galaxy And Mass Assembly (GAMA) survey regions, and a related sample of galaxies in clusters.
In the EDR we publicly release the fully calibrated datacubes for a representative selection of 107 galaxies drawn from the GAMA regions, along with information about these galaxies from the GAMA catalogues. All datacubes for the 107 EDR galaxies can be downloaded individually or as a set from the SAMI Galaxy Survey website.
In this paper we also assess the quality of the pipeline used to reduce the SAMI data, giving metrics that quantify the performance at all stages in processing the raw data into calibrated datacubes. The pipeline gives excellent results throughout, with typical sky subtraction residuals of 0.9-1.2 per cent, a relative flux calibration uncertainty of 4.1 per cent (systematic) plus 4.3 per cent (statistical), and atmospheric dispersion removed with an accuracy of 0."09, less than a fifth of a spaxel.