Search Results - "Dors, O. L"

Chemical abundances in Seyfert galaxies – V. The discovery of shocked emission outside the AGN ionization axis by Riffel, R A, Dors, O L, Armah, M, Storchi-Bergmann, T, Feltre, A, Hägele, G F, Cardaci, M V, Ruschel-Dutra, D, Krabbe, A C, Pérez-Montero, E, Zakamska, N L, Freitas, I C

“…ABSTRACT We present maps for the electron temperature in the inner kpc of three luminous Seyfert galaxies: Mrk 79, Mrk 348, and Mrk 607 obtained from Gemini…”
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Evidence for Low-power Radio Jet–ISM Interaction at 10 pc in the Dwarf AGN Host NGC 4395 by Nandi, Payel, Stalin, C. S., Saikia, D. J., Riffel, Rogemar A., Manna, Arijit, Pal, Sabyasachi, Dors, O. L., Wylezalek, Dominika, Paliya, Vaidehi S., Saikia, Payaswini, Dabhade, Pratik, Patig, Markus-Kissler, Sagar, Ram

“…Abstract Black-hole-driven outflows in galaxies hosting active galactic nuclei (AGN) may interact with their interstellar medium (ISM) affecting star formation…”
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Analysing derived metallicities and ionization parameters from model-based determinations in ionized gaseous nebulae by Dors Jr, O. L., Krabbe, Angela, Hägele, Guillermo F., Pérez-Montero, Enrique

“…We analyse the reliability of oxygen abundances and ionization parameters obtained from a number of diagnostic diagrams. To do this, we used the literature to…”
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A bayesian-like approach to derive chemical abundances in type-2 active galactic nuclei based on photoionization models by Pérez-Montero, E, Dors, O L, Vílchez, J M, García-Benito, R, Cardaci, M V, Hägele, G F

“…Abstract We present a new methodology for the analysis of the emission lines of the interstellar medium in the narrow-line regions around type-2 active…”
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New quantitative nitrogen abundance estimations in a sample of Seyfert 2 active galactic nuclei by Dors Jr, O. L., Arellano-Córdova, K. Z., Cardaci, M. V., Hägele, G. F.

“…Abstract We obtained new quantitative determinations of the nitrogen abundance and a consistent relation between the nitrogen and oxygen abundances for a…”
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Chemical abundance of LINER galaxies – metallicity calibrations based on SDSS-IV MaNGA by Oliveira, C B, Krabbe, A C, Hernandez-Jimenez, J A, Dors, O L, Zinchenko, I A, Hägele, G F, Cardaci, M V, Monteiro, A F

“…ABSTRACT The ionizing source of low-ionization nuclear emission-line regions (LINERs) is uncertain. Because of this, an empirical relation to determine the…”
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Chemical abundances of LINER galaxies – nitrogen abundance estimations by Oliveira, C B, Krabbe, A C, Dors, O L, Zinchenko, I A, Hernandez-Jimenez, J A, Cardaci, M V, Hägele, G F, Ilha, G S

“…ABSTRACT In this work, we investigated the nitrogen and oxygen abundances in a sample of galaxies with Low Ionization Nuclear Emission Regions (LINERs) in…”
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Semi-empirical metallicity calibrations based on ultraviolet emission lines of type-2 AGNs by Dors, O L, Monteiro, A F, Cardaci, M V, Hägele, G F, Krabbe, A C

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The effects of the interactions on the kinematics, stellar population and metallicity of AM2322-821 with Gemini/GMOS by Krabbe, A. C, Pastoriza, M. G, Winge, Cláudia, Rodrigues, I, Dors, O. L, Ferreiro, D. L

“…ABSTRACT We present an observational study of the impacts of the interactions on the kinematics, stellar populations and oxygen abundances of the components of…”
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Imagery and long-slit spectroscopy of the polar ring galaxy AM 2020-504 by Freitas-Lemes, P., Rodrigues, I., Faúndez-Abans, M., Dors, O. L., Fernandes, I. F.

“…Abstract Interactions between galaxies are very common. There are special types of interactions that produce systems called polar ring galaxies (PRGs),…”
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Chemical abundances in Seyfert galaxies – VIII. Argon abundance estimates by Monteiro, A F, Dors, O L

“…ABSTRACT For the first time, the argon abundance relative to hydrogen abundance (Ar/H) in the narrow line region of a sample of Seyfert 2 nuclei has been…”
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Oxygen abundances in the narrow line regions of Seyfert galaxies and the metallicity–luminosity relation by Armah, Mark, Riffel, Rogério, Dors, O L, Oh, Kyuseok, Koss, Michael J, Ricci, Claudio, Trakhtenbrot, Benny, Valerdi, Mabel, Riffel, Rogemar A, Krabbe, Angela C

“…ABSTRACT We present oxygen abundances relative to hydrogen (O/H) in the narrow line regions (NLRs) gas phases of Seyferts 1 (Sy 1s) and Seyferts 2 (Sy 2s)…”
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Chemical abundances of Seyfert 2 AGNs – III. Reducing the oxygen abundance discrepancy by Dors, O L, Maiolino, R, Cardaci, M V, Hägele, G F, Krabbe, A C, Pérez-Montero, E, Armah, M

“…ABSTRACT We investigate the discrepancy between oxygen abundance estimations for narrow-line regions of active galactic nuclei (AGNs) type Seyfert 2 derived…”
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Chemical abundances of Seyfert 2 AGNs – II. N2 metallicity calibration based on SDSS by Carvalho, S P, Dors, O L, Cardaci, M V, Hägele, G F, Krabbe, A C, Pérez-Montero, E, Monteiro, A F, Armah, M, Freitas-Lemes, P

“…ABSTRACT We present a semi-empirical calibration between the metallicity (Z) of Seyfert 2 active galactic nuclei and the N2 = log([N ii]λ6584/H α)…”
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Chemical abundances of Seyfert 2 AGNs – I. Comparing oxygen abundances from distinct methods using SDSS by Dors, O L, Freitas-Lemes, P, Amôres, E B, Pérez-Montero, E, Cardaci, M V, Hägele, G F, Armah, M, Krabbe, A C, Faúndez-Abans, M

“…ABSTRACT We compare the oxygen abundance (O/H) of the narrow-line regions (NLRs) of Seyfert 2 AGNs obtained through strong-line methods and from direct…”
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Circumnuclear star formation in Mrk 42 mapped with Gemini Near-infrared Integral Field Spectrograph by Hennig, Moiré G, Riffel, Rogemar A, Dors, O L, Riffel, Rogerio, Storchi-Bergmann, Thaisa, Colina, Luis

“…Abstract We present Gemini Near-infrared Integral Field Spectrograph (NIFS) observations of the inner 1.5 × 1.5 kpc2 of the narrow-line Seyfert 1 galaxy Mrk 42…”
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Molecular hydrogen and [Fe ii] in active galactic nuclei - III. Low-ionization nuclear emission-line region and star-forming galaxies by Riffel, R., Rodríguez-Ardila, A., Aleman, I., Brotherton, M. S., Pastoriza, M. G., Bonatto, C., Dors, O. L.

“…We study the kinematics and excitation mechanisms of H2 and [Fe ii] lines in a sample of 67 emission-line galaxies with Infrared Telescope Facility SpeX…”
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On the central abundances of active galactic nuclei and star-forming galaxies by Dors, O. L., Cardaci, M. V., Hägele, G. F., Rodrigues, I., Grebel, E. K., Pilyugin, L. S., Freitas-Lemes, P., Krabbe, A. C.

“…We examine the relation between oxygen abundances in the narrow-line regions (NLRs) of active galactic nuclei (AGNs) estimated from the optical emission lines…”
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Spatially–resolved gas-phase metallicity in Seyfert galaxies by Armah, Mark, Riffel, Rogério, Dahmer-Hahn, L G, Davies, R I, Dors, O L, Kakkad, Darshan, Riffel, Rogemar A, Rodríguez-Ardila, A, Ruschel-Dutra, D, Storchi-Bergmann, T

“…Abstract We explore the relations between the gas-phase metallicity radial profiles (few hundred inner parsec) and multiple galaxy properties for 15 Seyfert…”
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Integral field spectroscopy of Green Peas – I. Disentangling disc-like turbulence and strong outflow kinematics in SDSS J083843.63+385350.5 by Bosch, G, Hägele, G F, Amorín, R, Firpo, V, Cardaci, M V, Vílchez, J M, Pérez-Montero, E, Papaderos, P, Dors, O L, Krabbe, A C, Campuzano-Castro, F

“…ABSTRACT Integral field spectroscopy is well known for providing detailed insight of extended sources thanks to the possibility of handling space resolved…”
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