620 citations · 9.9k across the 111 of their papers we have counts for
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Alternative diagnostic diagrams and the "forgotten" population of weak line galaxies in the SDSS
R. Cid Fernandes, G. Stasinska, M. S. Schlickmann +5
A numerous population of weak line galaxies (WLGs) is often left out of statistical studies on emission line galaxies (ELGs) due to the absence of an adequate classification scheme…
Emission line taxonomy and the nature of AGN-looking galaxies in the SDSS
Roberto Cid Fernandes, Grazyna Stasinska, Natalia Vale Asari +3
Massive spectroscopic surveys like the SDSS have revolutionized the way we study AGN and their relations to the galaxies they live in. A first step in any such study is to define s…
Testing spectral models for stellar populations with star clusters: II. Results
Rosa M. Gonzalez Delgado, Roberto Cid Fernandes
High spectral resolution evolutionary synthesis models have become a routinely used ingredient in extragalactic work, and as such deserve thorough testing. Star clusters are ideal…
Testing spectral models for stellar populations with star clusters: I. Methodology
Roberto Cid Fernandes, Rosa M. Gonzalez Delgado
High resolution spectral models for simple stellar populations (SSP) developed in the past few years have become a standard ingredient in studies of stellar population of galaxies.…
What stellar populations can tell us about the evolution of the mass-metallicity relation in SDSS galaxies
N. Vale Asari, G. Stasinska, R. Cid Fernandes +4
During the last three decades, many papers have reported the existence of a luminosity-metallicity or mass-metallicity (M-Z) relation for all kinds of galaxies: The more massive ga…
The star formation histories of fossil group galaxies
I. G. de la Rosa, R. N. Proctor, C. Mendes de Oliveira +3
A comparison is carried out among the star formation histories of early-type galaxies (ETG) in fossil groups, clusters and low density environments. Although they show similar evol…
On the nature of the near-UV extended light in Seyfert galaxies
V. M. Muñoz Marín, T. Storchi-Bergmann, R. M. González Delgado +4
We study the nature of the extended near-UV emission in the inner kiloparsec of a sample of 15 Seyfert galaxies which have both near-UV (F330W) and narrow band [OIII] high resoluti…
An analysis of the composite stellar population in M32
P. Coelho, C. Mendes de Oliveira, R. Cid Fernandes
We obtained long-slit spectra of high signal-to-noise ratio of the galaxy M32 with the GMOS spectrograph at the GEMINI North telescope. We analysed the integrated spectra by means…
The evolution of the mass-metallicity relation in SDSS galaxies uncovered by astropaleontology
N. Vale Asari, G. Stasinska, R. Cid Fernandes +4
We have obtained the mass-metallicity (M-Z) relation at different lookback times for the same set of galaxies from the Sloan Digital Sky Survey, using the stellar metallicities est…
Star-powered LINERs in the Sloan Digital Sky Survey
N. Vale Asari, G. Stasinska, R. Cid Fernandes +5
Galaxies are usually classified as star forming or active by using diagnostic diagrams, such as [N II]/Halpha vs. [O III]/Hbeta. Active galaxies are further classified into Seyfert…
The starburst-AGN disconnection
R. Cid Fernandes, M. Schlickmann, G. Stasinska +5
Optical studies of starbursts, AGN and their connections usually leave out galaxies whose emission lines are too weak to warrant reliable measurement and classification. Yet, weak…