620 citations · 9.9k across the 111 of their papers we have counts for
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Diagnostics of composite starburst+Seyfert 2 nuclei: Hints on the starburst-AGN connection
Roberto Cid Fernandes, Tim Heckman, Henrique Schmitt +2
We present a simple population synthesis scheme which recognizes composite starburst+Seyfert 2 nuclei from a few easy-to-obtain optical measurements. Composite systems seem to evol…
Circumnuclear stellar population, morphology and environment of Seyfert 2 galaxies: an evolutionary scenario
T. Storchi-Bergmann, R. M Gonzalez Delgado, H. R. Schmitt +2
We investigate the relation between the characteristics of the circumnuclear stellar population and both the galaxy morphology and the presence of close companions for a sample of…
The Obscuring Starburst of NGC 6221 and Implications for the Hard X-ray Background
N. A. Levenson, R. Cid Fernandes, K. A. Weaver +2
We present NGC 6221 as a case study of ``X-ray loud composite galaxies,'' which appear similar to starbursts at optical wavelengths and resemble traditional active galactic nuclei…
Empirical diagnostics of the starburst-AGN connection
R. Cid Fernandes, T. Heckman, H. Schmitt +2
We examine a representative sample of 35 Seyfert 2 nuclei. Previous work has shown that nearly 1/2 of these nuclei show the direct (but difficult-to-detect) spectroscopic signature…
A probabilistic formulation for Empirical Population Synthesis: Sampling methods and tests
Roberto Cid Fernandes, Laerte Sodre, Henrique Schmitt +2
We present a probabilistic formulation of the classical problem of synthesizing spectral properties of a galaxy using a base of star clusters. The problem consists of estimating th…