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| Paper: |
The CALIFA Survey Across the Hubble Sequence: How Galaxies Grow their Bulges and Disks |
| Volume: |
507, Multi-Object Spectroscopy in the Next Decade: Big Questions, Large Surveys, and Wide Fields |
| Page: |
251 |
| Authors: |
Gonzáez-Delgado, R. M.; García-Benito, R.; Pérez, E.; Cid Fernandes, R.; de Amorim, A. L.; Cortijo-Ferrero, C.; Lacerda, E. A. D.; López-Fernández, R.; Vale-Asari, R. L.; Sánchez, S.; CALIFA collaboration |
| Abstract: |
We characterize in detail the radial structure of the stellar population properties of 300 galaxies in the nearby universe, observed with integral field spectroscopy in the CALIFA survey. The sample covers a wide range of Hubble types, from spheroidal to spiral galaxies, ranging in stellar masses from M★∼109 to 7×1011 ☉. We derive the stellar mass surface density (μ★), light-weighted and mass-weighted ages (〈log age〉L, 〈log age〉M), and mass-weighted metallicity (〈logZ★ 〉M), applying the spectral synthesis technique. We study the mean trends with galaxy stellar mass, M★, and morphology (E, S0, Sa, Sb, Sbc, Sc and Sd). We confirm that more massive galaxies are more compact, older, more metal rich, and less reddened by dust. Additionally, we find that these trends are preserved spatially with the radial distance to the nucleus. Deviations from these relations appear correlated with Hubble type: earlier types are more compact, older, and more metal rich for a given M★, which evidences that quenching is related to morphology, but not driven by mass. |
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