Instituto Federal Farroupilha

output

20122025

most citedThe AGNIFS survey: spatially resolved observations of hot molecular and ionised outflows in nearby active galaxies

48 citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

12 papers

astro-ph.GA2025★ 3 cited

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…

astro-ph.GA2023★ 48 cited

The AGNIFS survey: spatially resolved observations of hot molecular and ionised outflows in nearby active galaxies

R. A. Riffel, T. Storchi-Bergmann, R. Riffel +17

We present the hot molecular and warm ionised gas kinematics for 33 nearby ( $0.001 ≲ z ≲ 0.056$ ) X-ray selected active galaxies using the H $_{2} 2.1218 μ$ m and Br $γ$ emiss…

astro-ph.GA2021★ 35 cited

Gemini NIFS survey of feeding and feedback in nearby Active Galaxies -- V. Molecular and Ionised Gas Kinematics

M. Bianchin, R. A. Riffel, T. Storchi-Bergmann +7

We study the gas distribution and kinematics of the inner kpc of six moderately luminous (43.43 $\leq$ log $L_{bol} \leq$ 44.83) nearby ( $0.004 \leq z \leq 0.014$ ) Seyfert galaxies…

astro-ph.GA2021★ 35 cited

The AGNIFS survey: distribution and excitation of the hot molecular and ionised gas in the inner kpc of nearby AGN hosts

R. A. Riffel, T. Storchi-Bergmann, R. Riffel +13

We use the Gemini NIFS instrument to map the H $_{2} 2.1218 μ$ m and Br $γ$ flux distributions in the inner 0.04-2 kpc of a sample of 36 nearby active galaxies ($0.001\lesssim z\lesssim0…

astro-ph.GA2021★ 33 cited

Gemini NIFS survey of feeding and feedback in nearby Active Galaxies -- IV. Excitation

Rogemar A. Riffel, Marina Bianchin, Rogerio Riffel +5

The near-infrared spectra of Active Galactic Nuclei (AGN) present emission lines of different atomic and molecular species. The mechanisms involved in the origin of these emission…

astro-ph.GA2019★ 28 cited

Gemini NIFS survey of feeding and feedback in nearbyActive Galaxies - III. Ionized versus warm molecular gasmasses and distributions

Astor J. Schonell, Thaisa Storchi-Bergmann, Rogemar A. Riffel +5

We have used the Gemini Near-Infrared Integral Field Spectrograph (NIFS) in the J and K bands to map the distribution, excitation and kinematics of the ionized HII and warm molecul…

math.NT2018★ 3 cited

Weighted EGZ Constant for p-groups of rank 2

Filipe Oliveira, Abílio Lemos, Hemar Godinho

Let $G$ be a finite abelian group of exponent $n$ , written additively, and let $A$ be a subset of $Z$ . The constant $s_{A} (G)$ is defined as the smallest integer $ℓ$ such…

astro-ph.GA2017★ 25 cited

Gemini NIFS survey of feeding and feedback processes in nearby Active Galaxies: II -The sample and surface mass density profiles

R. A. Riffel, T. Storchi-Bergmann, R. Riffel +10

We present and characterize a sample of 20 nearby Seyfert galaxies selected for having BAT 14--195keV luminosities $L_{X} \geq 1 0^{41.5}$ erg s $^{- 1}$ , redshift $z \leq$ 0.015, being acc…

physics.plasm-ph2016★ 9 cited

Electromagnetic ion-cyclotron instability in a dusty plasma with product-bi-kappa distributions for the plasma particles

Michel S. dos Santos, Luiz F. Ziebell, Rudi Gaelzer

We study the dispersion relation for parallel propagating ion-cyclotron (IC) waves in a dusty plasma, considering situations where the velocity dispersion along perpendicular direc…

cond-mat.mes-hall2015

Klein Tunneling of Spin Polarized Currents in HgTe Quantum Wells

Davidson R. Viana, Thiago M. Melo, Jakson M. Fonseca +3

We investigate the behavior of spin polarized currents in two-dimensional topological insulators (TI). Stationary solutions inside a HgTe/CdTe quantum well (QW) were obtained by Be…

hep-ph2013★ 15 cited

Inelastic quarkonium photoproduction in coherent hadron - hadron interactions at LHC energies

V. P. Goncalves, M. M. Machado

In this paper we study the inelastic quarkonium photoproduction in coherent $pp / pP b / P b P b$ interactions. Considering the ultra relativistic hadrons as a source of photons, we estima…

hep-ph2012★ 7 cited

Quarkonium+ $γ$ production in coherent hadron - hadron interactions at LHC energies