Navegação Ciências Exatas e da Terra por Autor "Mallmann, Nícolas Dullius"

Resultados 1-13 de 13

    • BASS XXXI : outflow scaling relations in low redshift X-ray AGN host galaxies with MUSE 

      Kakkad, Darshan; Mallmann, Nícolas Dullius; Riffel, Rogério; Urry, C. Megan (2022) [Artigo de periódico]
      Ionized gas kinematics provide crucial evidence of the impact that active galactic nuclei (AGNs) have in regulating star formation in their host galaxies. Although the presence of outflows in AGN host galaxies has been ...

    • Determining star formation rates in active galactic nuclei hosts via stellar population synthesis 

      Riffel, Rogério; Mallmann, Nícolas Dullius; Ilha, Gabriele da Silva; Storchi-Bergmann, Thaisa; Riffel, Rogemar André; Rembold, Sandro Barboza; Bizyaev, D.; Nascimento, Janaina Correa do; Schimoia, Jáderson da Silva; Costa, Luiz N. da; Boardman, Nicholas Fraser; Boquien, Médéric; Couto, Guilherme dos Santos (2021) [Artigo de periódico]
      The effect of active galactic nuclei (AGNs) feedback on the host galaxy, and its role in quenching or enhancing star formation, is still uncertain due to the fact that usual star formation rate (SFR) indicators – emission-line ...

    • Gas-phase metallicity determinations in nearby AGNs with SDSS-IV MaNGA : evidence of metal-poor accretion 

      Nascimento, Janaina Correa do; Dors Júnior, Oli Luiz; Storchi-Bergmann, Thaisa; Mallmann, Nícolas Dullius; Riffel, Rogério; Ilha, Gabriele da Silva; Riffel, Rogemar André; Rembold, Sandro Barboza; Machado, Alice Deconto; Costa, Luiz N. da; Armah, Mark (2022) [Artigo de periódico]
      We derive the metallicity (traced by the O/H abundance) of the narrow-line region (NLR) of 108 Seyfert galaxies as well as radial metallicity gradients along their galaxy discs and of these of a matched control sample of ...

    • Mapping the stellar population and gas excitation of MaNGA galaxies with MEGACUBES : results for AGN versus control sample 

      Riffel, Rogério; Mallmann, Nícolas Dullius; Rembold, Sandro Barboza; Ilha, Gabriele da Silva; Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Dutra, Daniel Ruschel; Vazdekis, Alexandre; Martín-Navarro, Ignacio; Schimoia, Jáderson da Silva; Almeida, Cristina Ramos; Costa, Luiz N. da; Verde, Glauber Costa Vila; Gatto, Lara Maria (2023) [Artigo de periódico]
      We present spaxel-by-spaxel stellar population fits for the ∼10 000 MaNGA data cubes. We provide multiple extension fits files, nominated as MEGACUBES, with maps of several properties as well as emission-line profiles that ...

    • Precessing winds from the nucleus of the prototype Red Geyser? 

      Riffel, Rogemar André; Nemmen, Rodrigo S.; Ilha, Gabriele da Silva; Rembold, Sandro Barboza; Roy, Namrata; Storchi-Bergmann, Thaisa; Riffel, Rogério; Bundy, Kevin; Machado, Alice Deconto; Mallmann, Nícolas Dullius; Schimoia, Jáderson da Silva; Costa, Luiz N. da; Maia, Marcio Antonio Geimba (2019) [Artigo de periódico]
      Supermassive black holes (SMBHs) are present at the centre of most galaxies, with the related mass accretion processes giving origin to outflows in active galactic nuclei (AGNs). It has been presumed that only intense winds ...

    • SDSS-IV MaNGA : spatially resolved star formation histories in galaxies as a function of galaxy mass and type 

      Goddard, Daniel; Thomas, D.; Maraston, Claudia; Westfall, Kyle B.; Etherington, James; Riffel, Rogério; Mallmann, Nícolas Dullius; Zheng, Zheng; Argudo-Fernández, Maria; Lian, Jianhui; Bershady, Matthew A.; Bundy, Kevin; Drory, Niv; Law, David R.; Yan, Renbin; Wake, D.A.; Weijmans, Anne Marie; Bizyaev, D.; Brownstein, Joel R.; Lane, Richard R.; Maiolino, Roberto; Masters, K.L.; Merrifield, Michael; Nitschelm, Christian; Pan, K.; Roman-Lopes, Alexandre; Storchi-Bergmann, Thaisa; Schneider, D.P. (2017) [Artigo de periódico]
      We study the internal gradients of stellar population propertieswithin 1.5 Re for a representative sample of 721 galaxies, with stellar masses ranging between 109M and 1011.5M from the SDSS-IV MaNGA Integral-Field-Unit ...

    • SDSS-IV MaNGA : stellar population gradients as a function of galaxy environment 

      Goddard, Daniel; Thomas, D.; Maraston, Claudia; Westfall, Kyle B.; Etherington, James; Riffel, Rogério; Mallmann, Nícolas Dullius; Zheng, Zheng; Argudo-Fernández, Maria; Bershady, Matthew A.; Bundy, Kevin; Drory, Niv; Law, David R.; Yan, Renbin; Wake, D.A.; Weijmans, Anne Marie; Bizyaev, D.; Brownstein, Joel R.; Lane, Richard R.; Maiolino, Roberto; Masters, K.L.; Merrifield, Michael; Nitschelm, Christian; Pan, K.; Roman-Lopes, Alexandre; Storchi-Bergmann, Thaisa (2017) [Artigo de periódico]
      We study the internal radial gradients of stellar population properties within 1.5 Re and analyse the impact of galaxy environment.We use a representative sample of 721 galaxies with masses ranging between 109M and 1011.5M ...

    • The 13th Data Release of the Sloan Digital Sky Survey : first spectroscopic data from the SDSS-IV Survey Mapping Nearby Galaxies at Apache Point Observatory 

      Albareti, Franco D.; Nascimento, Janaina Correa do; Mallmann, Nícolas Dullius; Riffel, Rogério; Santiago, Basilio Xavier; Schimoia, Jáderson da Silva; Storchi-Bergmann, Thaisa; Zou, Hu (2017) [Artigo de periódico]
      The fourth generation of the Sloan Digital Sky Survey (SDSS-IV) began observations in 2014 July. It pursues three core programs: the Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2), Mapping Nearby ...

    • The first 62 AGN observed with SDSS-IV MaNGA – III : stellar and gas kinematics 

      Ilha, Gabriele da Silva; Riffel, Rogemar André; Schimoia, Jáderson da Silva; Storchi-Bergmann, Thaisa; Rembold, Sandro Barboza; Riffel, Rogério; Wylezalek, Dominika; Shi, Yong; Costa, Luiz N. da; Machado, Alice Deconto; Law, David R.; Bizyaev, D.; Mallmann, Nícolas Dullius; Nascimento, Janaina Correa do; Maia, Marcio Antonio Geimba; Cirolini, Rafael Fernando (2019) [Artigo de periódico]
      We investigate the effects of active galactic nuclei (AGN) on the gas kinematics of their host galaxies, using MaNGA data for a sample of 62 AGN hosts and 109 control galaxies (inactive galaxies). We compare orientation ...

    • The first 62 AGN observed with SDSS-IV MaNGA : II. resolved stellar populations 

      Mallmann, Nícolas Dullius; Riffel, Rogério; Storchi-Bergmann, Thaisa; Rembold, Sandro Barboza; Riffel, Rogemar André; Schimoia, Jáderson da Silva; Costa, Luiz N. da; Avila-Reese, Vladimir; Sánchez, Sebastián F.; Machado, Alice Deconto; Cirolini, Rafael Fernando; Ilha, Gabriele da Silva; Nascimento, Janaina Correa do (2018) [Artigo de periódico]
      We present spatially resolved stellar population (SP) age maps, average radial profiles and gradients for the first 62 active galactic nuclei (AGN) observed with Sloan Digital Sky Survey (SDSS)-IV Mapping Nearby Galaxies ...

    • The first 62 AGN observed with SDSS-IV MaNGA – IV. Gas excitation and star formation rate distributions 

      Nascimento, Janaina Correa do; Storchi-Bergmann, Thaisa; Mallmann, Nícolas Dullius; Riffel, Rogério; Ilha, Gabriele da Silva; Riffel, Rogemar André; Rembold, Sandro Barboza; Schimoia, Jáderson da Silva; Costa, Luiz N. da; Maia, Marcio Antonio Geimba; Machado, Alice Deconto (2019) [Artigo de periódico]
      We present maps of the ionized gas flux distributions, excitation, star formation rate (SFR), surface mass density ΣH+, and obtain total values of SFR and ionized gas masses M for 62 active galactic nuclei (AGN) observed ...

    • The first 62 AGNs observed with SDSS-IV MaNGA : I. Their characterization and definition of a control sample 

      Rembold, Sandro Barboza; Schimoia, Jáderson da Silva; Storchi-Bergmann, Thaisa; Riffel, Rogério; Riffel, Rogemar André; Mallmann, Nícolas Dullius; Nascimento, Janaina Correa do; Moreira, Thales Nunes; Ilha, Gabriele da Silva; Machado, Alice Deconto; Cirolini, Rafael Fernando; Costa, Luiz N. da; Maia, Marcio Antonio Geimba; Santiago, Basilio Xavier; Schneider, D.P.; Wylezalek, Dominika; Bizyaev, D.; Pan, K.; Muller-Sanchez, Francisco (2017) [Artigo de periódico]
      We report the characterization of the first 62 Mapping Nearby Galaxies at the Apache Point Observatory active galactic nuclei (AGNs) hosts and the definition of a control sample of non-active galaxies. This control sample ...

    • The puzzling origin of massive compact galaxies in MaNGA 

      Müller, Allan Schnorr; Trevisan, Marina; Riffel, Rogério; Chies-Santos, Ana Leonor; Furlanetto, Cristina; Ricci, Tiago Vecchi; Lohmann, Felipe Schmidt; Freitas, Rodrigo Flores de; Mallmann, Nícolas Dullius; Alamo-Martínez, Karla A. (2021) [Artigo de periódico]
      We characterized the kinematics, morphology, and stellar population (SP) properties of a sample of massive compact quiescent galaxies (MCGs, 10 log M /M 11 and re ∼ 1–3 kpc) in the MaNGA Survey, with the goal of constraining ...