Navegação Ciências Exatas e da Terra por Autor "Müller, Allan Schnorr"

Resultados 1-20 de 33

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

      Dutra, Daniel Ruschel; Storchi-Bergmann, Thaisa; Müller, Allan Schnorr; Riffel, Rogemar André; Oliveira, Bruno Dall'Agnol de; Lena, Davide; Robinson, Andrew; Nagar, Neil M.; Elvis, Martin (2021) [Artigo de periódico]
      We analyse optical data cubes of the inner kiloparsec of 30 local (z ≤ 0.02) active galactic nucleus (AGN) hosts that our research group, AGNIFS, has collected over the past decade via observations with the integral field ...

    • An outflow in the Seyfert ESO 362-G18 revealed by Gemini-GMOS/IFU observations 

      Humire, Pedro K.; Nagar, Neil M.; Finlez, Carolina; Firpo, Verónica; Slater, Roy; Lena, Davide; Soto-Pinto, Pamela; Munõz-Vergara, Dania; Riffel, Rogemar André; Schmitt, Henrique Roberto; Kraemer, S. B.; Müller, Allan Schnorr; Fischer, Travis C.; Robinson, Andrew; Storchi-Bergmann, Thaisa; Crenshaw, Daniel Michael; Elvis, Martin (2018) [Artigo de periódico]
      We present two-dimensional stellar and gaseous kinematics of the inner 0.7 × 1.2 kpc2 of the Seyfert 1.5 galaxy ESO 362-G18, derived from optical (4092–7338 Å) spectra obtained with the GMOS integral field spectrograph on ...

    • Constraints on the broad-line region properties and extinction in local Seyferts 

      Müller, Allan Schnorr; Davies, Richard I.; Korista, Kirk T.; Burtscher, Leonard; Rosario, David; Storchi-Bergmann, Thaisa; Contursi, Alessandra; Genzel, Reinhard; Gracia-Carpio, Javier; Hicks, Erin K. S.; Janssen, Annemieke; Koss, Michael; Lin, Ming-Yi; Lutz, Dieter; Maciejewski, Witold B.; Muller-Sanchez, Francisco; Orban de Xivry, Gilles; Riffel, Rogério; Riffel, Rogemar André; Schartmann, Marc; Sternberg, Amiel; Sturm, Eckhard; Tacconi, Linda J.; Veilleux, Sylvain; Ulrich, Otho Adam (2016) [Artigo de periódico]
      We use high-spectral resolution (R>8000) data covering 3800–13 000 Å to study the physical conditions of the broad-line region (BLR) of nine nearby Seyfert 1 galaxies. Up to six broad HI lines are present in each spectrum. ...

    • Dusty spirals versus gas kinematics in the inner kiloparsec of four low-luminosity active galactic nuclei 

      Brum, Carine; Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Robinson, Andrew; Müller, Allan Schnorr; Lena, Davide (2017) [Artigo de periódico]
      We used the Gemini Multi-Object Spectrograph Integral Field Unit tomap the gas distribution, excitation and kinematics within the inner kiloparsec of four nearby low-luminosity active galaxies: NGC 3982, NGC 4501, NGC 2787 ...

    • Exploring the AGN-merger connection in Arp 245 : I: nuclear star formation and gas outflow in NGC 2992 

      Pereira, Muryel Guolo; Dutra, Daniel Ruschel; Storchi-Bergmann, Thaisa; Müller, Allan Schnorr; Fernandes, Roberto Cid; Couto, Guilherme dos Santos; Dametto, Natacha Zanon; Hernández Jiménez, José Andrés (2021) [Artigo de periódico]
      Galaxy mergers are central to our understanding of galaxy formation, especially within the context of hierarchical models. Besides having a large impact on the star formation history, mergers are also able to influence gas ...

    • Feeding and feedback in NGC 3081 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Robinson, Andrew; Lena, Davide; Nagar, Neil M. (2016) [Artigo de periódico]
      We present two-dimensional gaseous kinematics of the inner 1.2 × 1.8 kpc2 of the Seyfert 2 galaxy NGC 3081, from optical spectra (5600–7000 Å) obtained with the Gemini Multi Object Spectrograph integral field spectrograph ...

    • Feeding and feedback in the inner kiloparsec of the active galaxy NGC 2110 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Nagar, Neil M.; Robinson, Andrew; Lena, Davide; Riffel, Rogemar André; Couto, Guilherme dos Santos (2014) [Artigo de periódico]
      We present two-dimensional gaseous kinematics of the inner 1.1 × 1.6 kpc² of the Seyfert 2 galaxy NGC 2110, from optical spectra (5600–7000 Å) obtained with the GeminiMulti Object Spectrograph integral field spectrograph ...

    • Gas inflows towards the nucleus of NGC 1358 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Nagar, Neil M.; Robinson, Andrew; Lena, Davide (2017) [Artigo de periódico]
      We use optical spectra from the inner 1.8×2.5 kpc2 of the Seyfert 2 galaxy NGC1358, obtained with the GMOS integral field spectrograph on the Gemini South telescope at a spatial resolution of ≈165 pc, to assess the feeding ...

    • Gas inflows towards the nucleus of the active galaxy NGC 7213 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Nagar, Neil M.; Ferrari, Fabricio (2014) [Artigo de periódico]
      We present two-dimensional stellar and gaseous kinematics of the inner 0.8 × 1.1 kpc² of the LINER/Seyfert 1 galaxy NGC 7213, from optical spectra obtained with the Gemini Multi- Object Spectrograph integral field spectrograph ...

    • Gas inflows towards the nucleus of the Seyfert 2 galaxy NGC 1667 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Ferrari, Fabricio; Nagar, Neil M. (2017) [Artigo de periódico]
      We use optical spectra from the inner 2 × 3 kpc2 of the Seyfert 2 galaxy NGC 1667, obtained with the Gemini Multi-Object Spectrograph integral field spectrograph on the Gemini South telescope at a spatial resolution of ...

    • Gas rotation, shocks and outflow within the inner 3 kpc of the radio galaxy 3C 33 

      Couto, Guilherme dos Santos; Storchi-Bergmann, Thaisa; Müller, Allan Schnorr (2017) [Artigo de periódico]
      We present optical integral field spectroscopy – obtained with the Gemini Multi-Object Spectrograph – of the inner 4.0 × 5.8 kpc2 of the narrow line radio galaxy 3C 33 at a spatial resolution of 0.58 kpc. The gas emission ...

    • Gas streaming motions towards the nucleus of M81 

      Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Riffel, Rogemar André; Ferrari, Fabricio; Steiner, João Evangelista; Axon, David J.; Robinson, Andrew (2011) [Artigo de periódico]
      We present two-dimensional stellar and gaseous kinematics of the inner 120×250 pc2 of the LINER/Seyfert 1 galaxy M81, from optical spectra obtained with the Gemini Multi-Object Spectrograph (GMOS) integral field spectrograph ...

    • Gauging the effect of supermassive black holes feedback on quasar host galaxies 

      Oliveira, Bruno Dall'Agnol de; Storchi-Bergmann, Thaisa; Kraemer, S. B.; Villar-Martín, Montse; Müller, Allan Schnorr; Schmitt, Henrique Roberto; Dutra, Daniel Ruschel; Crenshaw, Daniel Michael; Fischer, Travis C. (2021) [Artigo de periódico]
      In order to gauge the role that active galactic nuclei play in the evolution of galaxies via the effect of kinetic feedback in nearby QSO 2’s (z ∼ 0.3), we observed eight such objects with bolometric luminosities Lbol∼1046ergs−1 ...

    • Globular cluster systems of relic galaxies 

      Alamo-Martínez, Karla A.; Chies-Santos, Ana Leonor; Beasley, Michael; Freitas, Rodrigo Flores de; Furlanetto, Cristina; Trevisan, Marina; Müller, Allan Schnorr; Leaman, Ryan; Bonatto, Charles Jose (2021) [Artigo de periódico]
      We analyse the globular cluster (GC) systems of a sample of 15 massive, compact early-type galaxies (ETGs), 13 of which have already been identified as good relic galaxy candidates on the basis of their compact morphologies, ...

    • Insights on the dusty torus and neutral torus from optical and X-ray obscuration in a complete volume limited hard X-ray AGN sample 

      Davies, Richard I.; Burtscher, Leonard; Rosario, David; Storchi-Bergmann, Thaisa; Contursi, Alessandra; Genzel, Reinhard; Gracia-Carpio, Javier; Hicks, Erin K. S.; Janssen, Annemieke; Koss, Michael; Lin, Ming-Yi; Lutz, Dieter; Maciejewski, Witold B.; Muller-Sanchez, Francisco; Orban de Xivry, Gilles; Ricci, Claudio; Riffel, Rogério; Riffel, Rogemar André; Schartmann, Marc; Müller, Allan Schnorr; Sternberg, Amiel; Sturm, Eckhard; Tacconi, Linda J.; Veilleux, Sylvain (2015) [Artigo de periódico]
      We describe a complete volume limited sample of nearby active galaxies selected by their 14–195 keV luminosity, and outline its rationale for studying the mechanisms regulating gas inflow and outflow. We also describe a ...

    • Integral field spectroscopy of the circum-nuclear region of the radio Galaxy Pictor A 

      Couto, Guilherme dos Santos; Storchi-Bergmann, Thaisa; Robinson, Andrew; Riffel, Rogemar André; Kharb, Preeti; Lena, Davide; Müller, Allan Schnorr (2016) [Artigo de periódico]
      We present optical integral field spectroscopy of the inner 2.5 × 3.4 kpc2 of the broad-line radio galaxy Pictor A, at a spatial resolution of ≈400 pc. Line emission is observed over the whole field of view, being strongest ...

    • Ionized gas kinematics within the inner kiloparsec of the Seyfert galaxy NGC 1365 

      Lena, Davide; Robinson, Andrew; Storchi-Bergmann, Thaisa; Couto, Guilherme dos Santos; Müller, Allan Schnorr; Riffel, Rogemar André (2016) [Artigo de periódico]
      We observed the nuclear region of the galaxy NGC 1365 with the integral field unit of the Gemini Multi Object Spectrograph mounted on the GEMINI-South telescope. The field of view covers 13 × 6 arcsec2(1173 × 541 pc2) ...

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

      Davies, Richard I.; Baron, Dalya; Shimizu, Taro; Netzer, Hagai; Burtscher, Leonard; De Zeeuw, P. Tim; Genzel, Reinhard; Hicks, Erin K. S.; Koss, Michael; Lin, Ming-Yi; Lutz, Dieter; Maciejewski, Witold B.; Muller-Sanchez, Francisco; Orban de Xivry, Gilles; Ricci, Claudio; Riffel, Rogério; Riffel, Rogemar André; Rosario, David; Schartmann, Marc; Müller, Allan Schnorr; Shangguan, J.; Sternberg, Amiel; Sturm, Eckhard; Storchi-Bergmann, Thaisa; Tacconi, Linda J.; Veilleux, Sylvain (2020) [Artigo de periódico]
      We report on the determination of electron densities, and their impact on the outflow masses and rates, measured in the central few hundred parsecs of 11 local luminous active galaxies. We show that the peak of the integrated ...

    • LLAMA : normal star formation efficiencies of molecular gas in the centres of luminous Seyfert galaxies 

      Rosario, David; Riffel, Rogério; Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Veilleux, Sylvain (2018) [Artigo de periódico]
      Using new Atacama Pathfinder Experiment and James Clerk Maxwell Telescope spectroscopy of the CO 2→1 line, we undertake a controlled study of cold molecular gas in moderately luminous (Lbol = 1043–44.5 erg s−1) active ...

    • LLAMA : nuclear stellar properties of Swift-BAT AGN and matched inactive galaxies 

      Lin, Ming-Yi; Riffel, Rogério; Müller, Allan Schnorr; Storchi-Bergmann, Thaisa; Veilleux, Sylvain (2018) [Artigo de periódico]
      In a complete sample of local 14–195 keV selected active galactic nuclei (AGNs) and inactive galaxies, matched by their host galaxy properties, we study the spatially resolved stellar kinematics and luminosity distributions ...