Articles by Rogemar André Riffel

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Rogemar André Riffel

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Empirical calibration for helium abundance determinations in Active Galactic Nuclei

5 June 2024 by Oli Luiz Dors and others

Astrophysics of Galaxies

Direct estimates of nitrogen abundance for Seyfert 2 nuclei

22 May 2024 by Oli Luiz Dors and others

Astrophysics of Galaxies

Cosmic metallicity evolution of Active Galactic Nuclei: Implications for optical diagnostic diagrams

23 November 2023 by Oli Dors and others

Astrophysics of Galaxies

Chemical abundances in Seyfert galaxies X. Sulphur abundance estimates

24 February 2023 by Oli Luiz Dors and others

Astrophysics of Galaxies

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

23 February 2023 by Rogemar André Riffel and others

Astrophysics of Galaxies

Active Galactic Nuclei signatures in Red Geyser galaxies from Gemini GMOS-IFU observations

15 August 2022 by G. Ilha and others

Astrophysics of Galaxies

Warm molecular and ionized gas kinematics in the Type-2 quasar J0945+1737

30 June 2022 by Giorgio Speranza and others

Astrophysics of Galaxies

Chemical abundances in Seyfert galaxies -IX. Helium abundance estimates

20 June 2022 by Oli Luiz Dors and others

Astrophysics of Galaxies

Ionised Gas Kinematics in MaNGA AGN. Extents of the Narrow Line and Kinematically Disturbed regions

5 January 2022 by Alice Deconto-Machado and others

Astrophysics of Galaxies

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

26 November 2021 by M. Bianchin and others

Astrophysics of Galaxies

Stellar populations in local AGNs: evidence for enhanced star formation in the inner 100pc

19 November 2021 by Luis Gabriel Dahmer-Hahn and others

Astrophysics of Galaxies

Chemical abundances in Seyfert galaxies -- VII. Direct abundance determination of neon based on optical and infrared emission lines

10 September 2021 by Mark Armah and others

Astrophysics of Galaxies

A Gemini-NIFS view of the merger remnant NGC 34

20 July 2021 by J. Motter and others

Astrophysics of Galaxies

AGNIFS survey of local AGN: GMOS-IFU data and outflows in 30 sources

15 July 2021 by Daniel Ruschel-Dutra and others

Astrophysics of Galaxies

LLAMA: Stellar populations in the nuclei of ultra hard X-ray selected AGN and matched inactive galaxies

11 May 2021 by Leo Burtscher and others

Astrophysics of Galaxies

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

7 April 2021 by Rogemar André Riffel and others at

Universidade Federal de Santa Maria

Astrophysics of Galaxies

SDSS-IV MANGA: A Star Formation -- Baryonic Mass Relation at Kpc Scales

7 January 2021 by J. Barrera-Ballesteros and others

Astrophysics of Galaxies

Chemical abundances in Seyfert galaxies -- V. The discovery of shocked emission outside the AGN ionization axis

4 December 2020 by Rogemar André Riffel and others at

Universidade Federal de Santa Maria

Astrophysics of Galaxies

Chemical abundances of Seyfert 2 AGNs IV. Composite models calculated by photoionization + shocks

24 November 2020 by Oli Luiz Dors and others

Astrophysics of Galaxies

Ionized outflows in local luminous AGN: what are the real densities and outflow rates?

11 August 2020 by Ron Davies and others

Astrophysics of Galaxies

Gemini Near-Infrared Field Spectrograph Observations of the Seyfert 2 Galaxy Mrk 3: Feeding and Feedback on Galactic and Nuclear Scales

20 April 2020 by C. Gnilka and others

Astrophysics of Galaxies

The multiphase gas structure and kinematics in the circumnuclear region of NGC 5728

2 October 2019 by T. Taro Shimizu and others

Astrophysics of Galaxies

The first spectroscopic dust reverberation programme on active galactic nuclei: the torus in NGC 5548

5 August 2019 by H. Landt and others at

Durham University

Astrophysics of Galaxies

Nuclear kinematics in nearby AGN. I. An ALMA perspective on the Morphology and Kinematics of the molecular CO(2-1) emission

3 May 2019 by Varsha Ramakrishnan and others

Astrophysics of Galaxies, Solar and Stellar Astrophysics

Gemini IFU, VLA, and HST observation of the OH Megamaser Galaxy IRAS17526+3253

12 March 2019 by Dinalva Sales and others

Astrophysics of Galaxies

Widespread star formation inside galactic outflows

23 February 2019 by Russell Gallagher and others

Astrophysics of Galaxies

SNITCH: Seeking a simple, informative star formation history inference tool

21 January 2019 by R. Smethurst and others

Astrophysics of Galaxies

A panchromatic spatially resolved study of the inner 500 pc of NGC 1052 - I: Stellar population

7 November 2018 by Luis Gabriel Dahmer-Hahn and others

Astrophysics of Galaxies

Nature and chemical abundances of a sample of Lyman-α emitter objects at high redshift

20 June 2018 by Oli Luiz Dors and others

Astrophysics of Galaxies

Outflows in the inner kiloparsec of NGC 1566 as revealed by molecular (ALMA) and ionized gas (Gemini-GMOS/IFU) kinematics

5 April 2018 by Roy Slater and others

Astrophysics of Galaxies

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Astrophysics of Galaxies Solar and Stellar Astrophysics Cosmology and Nongalactic Astrophysics