activity
20072026
most citedThe Tenth Data Release of the Sloan Digital Sky Survey: First Spectroscopic Data from the SDSS-III Apache Point Observatory Galactic Evolution Experiment

1k citations · 6k across the 140 of their papers we have counts for

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119 papers · 1 filter

astro-ph.GA2026

The differences in the Narrow Line Region of nearby QSOs 1 and QSOs 2: II - Signatures of kinetic feedback

Gabriel R. Hauschild-Roier, Thaisa Storchi-Bergmann, Rogério Riffel +2

We compare the integrated kinematic properties of the Narrow-Line Region (NLR) of ~1500 type 1 and ~700 type 2 QSOs at 0.4 < z < 0.5 using emission-line profiles from SDSS-IV spect…

astro-ph.GA2026

The interplay between active galactic nucleus photoionization, radio jet, and star formation in the z 3.5 radio galaxy 4C +03.24

Bruno Dall'Agnol de Oliveira, Dominika Wylezalek, Pranav Kukreti +9

High-redshift radio galaxies (HzRGs) are among the most powerful radio sources, and are associated with the most massive galaxies and dense environments at redshifts z 1.…

astro-ph.GA2026

Identifying AGNs from X-ray detectionsII: Metallicity calibrations for the and diagnostics

Mark Armah, O. L. Dors, Rogério Riffel +4

Emission-line ratios from ions with nearly identical ionization potentials offer a robust solution to the degeneracies inherent to traditional active galactic nuclei (AGNs) metalli…

astro-ph.GA2026

Blowing star formation away in AGN hosts (BAH) -- V: The Feeding-Feedback Cycle in local AGNs as revealed by their stellar populations

Rogério Riffel, Rogemar A. Riffel, Gabriel L. Souza-Oliveira +9

We present a spatially resolved analysis of the stellar populations in the inner kiloparsec of NGC 3884, 3C 293, and CGCG 012-070. Using near-infrared spectroscopy, we reconstruct…

astro-ph.GA2026★ 1 cited

Jet-driven shocks and turbulence in radio-loud Active Galactic Nuclei observed with JWST MIRI/MRS

Rogemar A. Riffel, Gabriel L. Souza-Oliveira, Luis Colina +34

Jet-cloud interactions are a key manifestation of Active Galactic Nucleus (AGN) feedback on nuclear scales, distinct from the large-scale radio-mode feedback that suppresses gas co…

astro-ph.GA2026

Identifying AGNs from X-ray detections-I: Metallicity calibrations in AGNs with X-ray luminosity as the primary input parameter

Mark Armah, O. L. Dors, Rogério Riffel +4

We present the first semi-empirical strong-line calibrations to determine metallicity in Active Galactic Nuclei (AGNs) that use the directly observable X-ray luminosity (Lx) instea…