The Calar Alto Legacy Integral Field Area survey: extended and remastered data release

Abstract

This paper describes the extended data release (eDR) of the Calar Alto Legacy Integral Field Area (CALIFA) survey. It comprises science-grade quality data for 895 galaxies obtained with the Potsdam Multi Aperture Spectograph/PPak instrument at the 3.5-m telescope at the Calar Alto Observatory along the last 12 yr, using the V500 setup [3700–7500 Å, 6 Å/full-width at half-maximum (FWHM)] and the CALIFA observing strategy. It includes galaxies of any morphological type, star formation stage, a wide range of stellar masses (∼107–1012 M⊙), at an average redshift of ∼0.015 (90 per cent within 0.005 < z < 0.05). Primarily selected based on the projected size and apparent magnitude, we demonstrate that it can be volume corrected resulting in a statistically limited but representative sample of the population of galaxies in the nearby Universe. All the data were homogeneous re-reduced, introducing a set of modifications to the previous reduction. The most relevant is the development and implementation of a new cube-reconstruction algorithm that provides with an (almost) seeing-limited spatial resolution (FWHMPSF ∼ 1.0 arcsec). To illustrate the usability and quality of the data, we extracted two aperture spectra for each galaxy (central 1.5 arcsec and fully integrated), and analyse them using pyFIT3D. We obtain a set of observational and physical properties of both the stellar populations and the ionized gas, that have been compared for the two apertures, exploring their distributions as a function of the stellar masses and morphologies of the galaxies, comparing with recent results in the literature.

The EDGE-CALIFA Survey: An Extragalactic Database for Galaxy Evolution Studies

“…Readers wishing to reproduce the exact results of this paper should access the appropriate version of the database as stored in the Github version history. The EDGE database architecture can easily be adapted to other IFU surveys, particularly when Pipe3D has been used for spectral fitting, and will continue to be updated as Pipe3D itself undergoes further development (e.g., Sánchez et al 2023).…”

TONGS: A Treasury of Nearby Galaxy Surveys

“…The CALIFA provided IFS observations for 600 galaxies in the nearby universe (Walcher et al 2014). Wavelength coverage was 370-750 nm with spectral resolution of 0.6 nm at full width at half maximum; a "remastered" data set has recently been released (Sánchez et al 2023). By taking an initial sample of galaxies from the SDSS and basing the selection of galaxies purely on visibility limits, the survey attempted to maintain the statistical properties of the SDSS sample while filling in a gap in IFS observations over a luminosity range of −19 M R −23.1 and a stellar mass between 10 9.7 M * /M e 10 11.4 .…”