The SAMI Galaxy Survey: the third and final data release

We have entered a new era where integral-field spectroscopic surveys of galaxies are sufficiently large to adequately sample large-scale structure over a cosmologically significant volume. This was the primary design goal of the SAMI Galaxy Survey. Here, in Data Release 3, we release data for the full sample of 3068 unique galaxies observed. This includes the SAMI cluster sample of 888 unique galaxies for the first time. For each galaxy, there are two primary spectral cubes covering the blue (370-570nm) and red (630-740nm) optical wavelength ranges at spectral resolving power of R = 1808 and 4304, respectively. For each primary cube, we also provide three spatially binned spectral cubes and a set of standardized aperture spectra. For each galaxy, we include complete 2D maps from parametrized fitting to the emission-line and absorption-line spectral data. These maps provide information on the gas ionization and kinematics, stellar kinematics and populations, and more. All data are available online through Australian Astronomical Optics Data Central.

Automated summary

The SAMI Galaxy Survey has released data for a total of 3068 unique galaxies, including 888 unique galaxies for the first time. Each galaxy has two primary spectral cubes covering the blue and red optical wavelength ranges, additional spatially binned spectral cubes, and standardized aperture spectra. 2D maps derived from parametrized fitting to the emission-line and absorption-line spectral data are also provided for each galaxy, offering insights into various physical properties.