238 citations · 645 across the 12 of their papers we have counts for
12 papers
Ionized Gas Outflows and Shock-Heated Emission in the Highly Inclined Active Galaxy CGCG 012-070
Lucas Ramos Vieira, Rogemar A. Riffel, Rogério Riffel +3
Active Galactic Nuclei (AGNs) exhibit excess mid-infrared H emission compared to star-forming galaxies, likely driven by outflows and shocks inferred from integrated spectra. W…
A jet-driven bipolar outflow in NGC 1125
Astor João Schönell Júnior, Rogemar A. Riffel, Rogério Riffel +1
To study the role of the feedback from the Active Galactic Nuclei (AGNs) in the evolution of its host galaxy, we need observational constraints on 100 pc scales. We used the Gemini…
Circumnuclear star formation in Mrk 42 mapped with Gemini Near-infrared Integral Field Spectrograph
Moire G. Hennig, Rogemar A. Riffel, O. L. Dors +3
We present Gemini Near-infrared Integral Field Spectrograph (NIFS) observations of the inner kpc of the narrow-line Seyfert 1 galaxy Mrk 42 at a spatial resoluti…
Evolution of the accretion disk around the supermassive black hole of NGC 7213
J. S. Schimoia, T. Storchi-Bergmann, C. Winge +2
We present observations of the double-peaked broad H profile emitted by the active nucleus of NGC 7213 using the the Gemini South Telescope in 13 epochs between 2011 September 2…
SDSS-IV MaNGA: The Impact of Diffuse Ionized Gas on Emission-line Ratios, Interpretation of Diagnostic Diagrams, and Gas Metallicity Measurements
Kai Zhang, Renbin Yan, Kevin Bundy +24
Diffuse Ionized Gas (DIG) is prevalent in star-forming galaxies. Using a sample of 365 nearly face-on star-forming galaxies observed by MaNGA, we demonstrate how DIG in star-formin…
Intermediate-age Stars as Origin of Low Stellar velocity Dispersion Nuclear Rings: the case of Mrk 1157
Rogério Riffel, Rogemar André Riffel, Fabricio Ferrari +1
We have used the Gemini Near-infrared Integral Field Spectrograph (NIFS) to map the age distribution of the stellar population in the inner 400 pc of the Seyfert 2 galaxy Mrk 1157…