VizieR Online Data Catalog: CALIFA ETGs spatially resolved stellar pop. (Zibetti+, 2020)

This study is based on a sample of 69 ETGs drawn from the main diameter-selected sample of the Calar Alto Legacy Integral Field Area (CALIFA) survey (Sanchez et al., 2012A&A...538A...8S; Walcher et al., 2014A&A...569A...1W) in its third and final data release (Sanchez et al., 2016, Cat. J/A+A/594/A36, DR3). These galaxies are selected from the seventh data release of the Sloan Digital Sky Survey (Abazajian et al., 2009ApJS..182..543A) requiring isophotal r-band diameter 45-arcsec<isoA_r<79.2-arcsec, r-band Petrosian magnitude <20 and available redshift 0.005<z<0.03.

Galaxies are observed in integral-field spectroscopy at the 3.5m telescope of the Calar Alto observatory with the Potsdam Multi-Aperture Spectrograph, PMAS in the PPAK mode. The hexagonal field of view of 74 arcsec x 64 arcsec is covered by a bundle of 331 science fibres, in three dithers.

Out of the 542 observed main sample galaxies, we consider only the 394 galaxies that have been observed in both the blue 'V1200' and red 'V500' setups. The unvignetted spectral coverage extends from 3700 to 7140Å, with a spatial sampling of 1 arcsec per spaxel (effective spatial resolution ~2.57 arcsec FWHM).

>From this sample we select morphologically classified ETGs, i.e. galaxies with morphological type earlier than S0a (S0a excluded), not classified as mergers (see Walcher et al., 2014A&A...569A...1W). After visual inspection we further discard three galaxies that are misclassified later types than E or S0.

Parameters of stellar population profiles, gradients and their correlations with global parameters for 69 ETGs observed in CALIFA. See reference paper (incl. online appendices) for a detailed description of measurements and model used for inferences.

(8 data files).