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The CaT strength in Seyfert nuclei revisited: analyzing young stars and non-stellar light contributions to the spectra
L. R. Vega, N. V. Asari, R. Cid Fernandes +4
In a former paper (Garcia-Rissmann et al. 2005; hereafter Paper I), we have presented spectra of 64 active, 9 normal and 5 Starburst galaxies in the region around the near-IR Calci…
Can retired galaxies mimic active galaxies? Clues from the Sloan Digital Sky Survey
G. Stasinska, N. V. Asari, R. Cid Fernandes +5
The classification of galaxies as star forming or active is generally done in the ([O III]/Hbeta, [N II]/Halpha) plane. The Sloan Digital Sky Survey (SDSS) has revealed that, in th…
The Star Formation Histories of galaxies: A tour through the STARLIGHT-SDSS database
R. Cid Fernandes, W. Schoenell, J. M. Gomes +6
Retrieving the Star Formation History (SFH) of a galaxy out of its integrated spectrum is the central goal of stellar population synthesis. Recent advances in evolutionary synthesi…
The history of star-forming galaxies in the Sloan Digital Sky Survey
N. V. Asari, R. Cid Fernandes, G. Stasinska +5
We study the evolution of 82302 star-forming (SF) galaxies from the SDSS. Our main goals are to explore new ways of handling star formation histories (SFH) obtained with our public…
Uncovering the chemical enrichment and mass-assembly histories of star-forming galaxies
R. Cid Fernandes, N. V. Asari, L. Sodre +5
We explore the mass-assembly and chemical enrichment histories of star forming galaxies by applying a population synthesis method to a sample of 84828 galaxies from the Sloan Digit…
Semi-empirical analysis of Sloan Digital Sky Survey galaxies III. How to distinguish AGN hosts
G. Stasinska, R. Cid Fernandes, A. Mateus +2
We consider the techniques to distinguish normal star forming (NSF) galaxies and active galactic nuclei (AGN) hosts using optical spectra. The observational data base is a set of 2…
An atlas of Calcium triplet spectra of active galaxies
A. Garcia-Rissmann, L. R. Vega, N. V. Asari +4
We present a spectroscopic atlas of active galactic nuclei covering the region around the 8498, 8542, 8662 Calcium triplet (CaT) lines. The sample comprises 78 objects, divided int…