VizieR Online Data Catalog: The gas-phase mass-metallicity relation (Sanchez+, 2019)
Abstract
The selection of the SAMI galaxy survey sample is described in detail in Bryant et al. (2015MNRAS.447.2857B), with further details in Owers et al. (2017MNRAS.468.1824O). A comparison with the sample selection of other integral field spectroscopic surveys was presented in Sanchez et al. (2017MNRAS.469.2121S, Cat. J/MNRAS/469/2121). The sample analysed here consists of a random sub-set of the foreseen final sample of SAMI targets (just over 3000 objects once the survey is completed). It comprises the 2307 galaxies observed by August 2017, included in the internal SAMI v0.10 distribution. These galaxies cover the redshift range between 0.005<z<0.1, with stellar masses between ~107-1011.5Mȯ, and with an extensive coverage of the colour-magnitude diagram. The SAMI observational setup uses the two arms of the spectrograph, one in the blue, covering the wavelength range between ~3700Å and ~5700Å with a resolution of ~173km/s (FWHM), and one in the red, covering the wavelength range between ~6250Å and ~7350Å, with a resolution of ~67km/s (FWHM). Therefore, the standard data-reduction produces two different data cubes, with two different wavelength ranges, spectral resolutions and spectral sampling. In this analysis, we combined those two data cubes into a single cube, following a similar procedure as that adopted for the CALIFA data cubes (e.g. Sanchez et al. 2016A&A...594A..36S, Cat. J/A+A/594/A36), by (i) degrading the resolution of the red-arm (R~4300) data cubes to that of the blue-arm (R~1800), (ii) re-sampling the full spectra to a common sampling of 1Å, and (iii) correcting them for Galactic extinction, using the attenuation curves provided by the SAMI data-reduction. The stellar masses, star-formation rates, and oxygen abundances for 1044 galaxies extracted from the SAMI galaxy survey are listed in Table E1.
(1 data file).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- August 2022
- Bibcode:
- 2022yCat..74843042S
- Keywords:
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- Spectroscopy;
- Abundances;
- Galaxies: spectra;
- Interstellar medium;
- Optical