Navegação Ciências Exatas e da Terra por Autor "Dametto, Natacha Zanon"

Resultados 1-17 de 17

    • 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 ...

    • Gemini NIFS survey of feeding and feedback in nearby active galaxies III. Ionized versus warm molecular gas masses and distributions 

      Schönell Júnior, Astor João; Storchi-Bergmann, Thaisa; Riffel, Rogemar André; Riffel, Rogério; Bianchin, Marina; Hahn, Luis Gabriel Dahmer; Diniz, Marlon Rodrigo; Dametto, Natacha Zanon (2019) [Artigo de periódico]
      We have used the Gemini Near-Infrared Integral Field Spectrograph in the J and K bands to map the distribution, excitation, and kinematics of the ionized H ii and warm molecular gas H2, in the inner few 100 pc of six nearby ...

    • Gemini NIFS survey of feeding and feedback in nearby active galaxies : IV. Excitation 

      Riffel, Rogemar André; Bianchin, Marina; Riffel, Rogério; Storchi-Bergmann, Thaisa; Schönell Júnior, Astor João; Hahn, Luis Gabriel Dahmer; Dametto, Natacha Zanon; Diniz, Marlon Rodrigo (2021) [Artigo de periódico]
      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 lines in AGN are still not fully understood. ...

    • Gemini NIFS survey of feeding and feedback in nearby active galaxies V. Molecular and ionized gas kinematics 

      Bianchin, Marina; Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Riffel, Rogério; Dutra, Daniel Ruschel; Harrison, Chris; Hahn, Luis Gabriel Dahmer; Mainieri, Vincenzo; Schönell Júnior, Astor João; Dametto, Natacha Zanon (2022) [Artigo de periódico]
      We study the gas distribution and kinematics of the inner kpc of six moderately luminous (43.43 ≤ log Lbol ≤ 44.83) nearby (0.004 ≤ z ≤ 0.014) Seyfert galaxies observed with the Near-infrared Integral Field Spectrograph ...

    • Gemini NIFS survey of feeding and feedback processes in nearby active galaxies : II. The sample and surface mass density profilesthe hidden monster and its outflow 

      Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Riffel, Rogério; Davies, Richard I.; Bianchin, Marina; Diniz, Marlon Rodrigo; Schönell Júnior, Astor João; Burtscher, Leonard; Crenshaw, Daniel Michael; Fischer, Travis C.; Hahn, Luis Gabriel Dahmer; Dametto, Natacha Zanon; Rosario, David (2018) [Artigo de periódico]
      We present and characterize a sample of 20 nearby Seyfert galaxies selected for having BAT 14–195 keV luminosities LX ≥ 1041.5 erg s−1, redshift z ≤ 0.015, being accessible for observations with the Gemini Near-Infrared ...

    • Gemini NIFS survey of feeding and feedback processes in nearby active galaxies : I. Stellar kinematics 

      Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Riffel, Rogério; Hahn, Luis Gabriel Dahmer; Diniz, Marlon Rodrigo; Schönell Júnior, Astor João; Dametto, Natacha Zanon (2017) [Artigo de periódico]
      We use the Gemini Near-Infrared Integral Field Spectrograph (NIFS) to map the stellar kinematics of the inner few hundred parsecs of a sample of 16 nearby Seyfert galaxies, at a spatial resolution of tens of parsecs and ...

    • Gemini NIFS survey of feeding and feedback processes in nearby active galaxies : VI. Stellar populations 

      Riffel, Rogério; Hahn, Luis Gabriel Dahmer; Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Dametto, Natacha Zanon; Davies, Richard I.; Burtscher, Leonard; Bianchin, Marina; Dutra, Daniel Ruschel; Ricci, Claudio; Rosario, David (2022) [Artigo de periódico]
      We use Gemini Near-Infrared Integral Field Spectrograph (NIFS) adaptive optics assisted data cubes to map the stellar population of the inner few hundred parsec of a sample of 18 nearby Seyfert galaxies. The near-infrared ...

    • A Gemini–NIFS view of the merger remnant NGC 34 

      Motter, Juliana Cristina; Riffel, Rogério; Ricci, Tiago Vecchi; Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Pastoriza, Miriani Griselda; Rodriguez-Ardila, Alberto; Dutra, Daniel Ruschel; Hahn, Luis Gabriel Dahmer; Dametto, Natacha Zanon; Diniz, Marlon Rodrigo (2021) [Artigo de periódico]
      The merger remnant NGC 34 is a local luminous infrared galaxy (LIRG) hosting a nuclear starburst and a hard X-ray source associated with a putative, obscured Seyfert 2 nucleus. In this work, we use adaptive optics assisted ...

    • A panchromatic spatially resolved study of the inner 500 pc of NGC 1052 : II. Gas excitation and kinematics 

      Hahn, Luis Gabriel Dahmer; Riffel, Rogério; Ricci, Tiago Vecchi; Steiner, João Evangelista; Storchi-Bergmann, Thaisa; Riffel, Rogemar André; Menezes, Roberto Bertoldo; Dametto, Natacha Zanon; Diniz, Marlon Rodrigo; Motter, Juliana Cristina; Dutra, Daniel Ruschel (2019) [Artigo de periódico]
      We map the optical and near-infrared (NIR) emission-line flux distributions and kinematics of the inner 320×535 pc2of the elliptical galaxy NGC 1052. The integral field spectra were obtained with the Gemini Telescope using ...

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

      Hahn, Luis Gabriel Dahmer; Riffel, Rogério; Steiner, João Evangelista; Riffel, Rogemar André; Menezes, Roberto Bertoldo; Ricci, Tiago Vecchi; Dametto, Natacha Zanon; Storchi-Bergmann, Thaisa; Diniz, Marlon Rodrigo (2019) [Artigo de periódico]
      We map optical and near-infrared (NIR) stellar population properties of the inner 320 × 535 pc2 of the elliptical galaxy NGC 1052. The optical and NIR spectra were obtained using the Gemini Integral Field Units of the GMOS ...

    • Probing evolutionary population synthesis models in the near infrared with early-type galaxies 

      Hahn, Luis Gabriel Dahmer; Riffel, Rogério; Rodriguez-Ardila, Alberto; Martins, Lucimara Pires; Kehrig, Carolina; Heckman, Timothy M.; Pastoriza, Miriani Griselda; Dametto, Natacha Zanon (2018) [Artigo de periódico]
      We performed a near-infrared (NIR; ∼1.0 –2.4 μm) stellar population study in a sample of early-type galaxies. The synthesis was performed using five different evolutionary population synthesis libraries of models. Our main ...

    • Probing the circumnuclear stellar populations of Starburst galaxies in the near-infrared 

      Dametto, Natacha Zanon; Riffel, Rogério; Pastoriza, Miriani Griselda; Rodriguez-Ardila, Alberto; Hernández Jiménez, José Andrés; Carvalho, Elaine Aparecida (2014) [Artigo de periódico]
      We employ the NASA Infrared Telescope Facility’s near-infrared spectrograph SpeX at 0.8– 2.4 μm to investigate the spatial distribution of the stellar populations (SPs) in the four well-known starburst galaxies: NGC 34, ...

    • A SINFONI view of the nuclear activity and circumnuclear star formation in NGC 4303 

      Riffel, Rogemar André; Colina, Luis; Storchi-Bergmann, Thaisa; Piqueras López, Javier; Arribas, Santiago; Riffel, Rogério; Pastoriza, Miriani Griselda; Sales, Dinalva Aires de; Dametto, Natacha Zanon; Labiano, Alvaro; Davies, Richard I. (2016) [Artigo de periódico]
      We present new maps of emission-line flux distributions and kinematics in both ionized (traced by HI and [Fe II] lines) and molecular (H2) gas of the inner 0.7 × 0.7 kpc2 of the galaxy NGC 4303, with a spatial resolution ...

    • A SINFONI view of the nuclear activity and circumnuclear star formation in NGC4303-II. Spatially resolved stellar populations 

      Dametto, Natacha Zanon; Riffel, Rogério; Colina, Luis; Riffel, Rogemar André; Piqueras López, Javier; Davies, Richard I.; Burtscher, Leonard; Menezes, Roberto Bertoldo; Arribas, Santiago; Pastoriza, Miriani Griselda; Labiano, Alvaro; Storchi-Bergmann, Thaisa; Hahn, Luis Gabriel Dahmer; Sales, Dinalva Aires de (2019) [Artigo de periódico]
      We present a spatially resolved stellar population study of the inner∼200 pc radius ofNGC 4303 based on near-infrared integral field spectroscopy with SINFONI/VLT at a spatial resolution of 40–80 pc and using the STARLIGHT ...

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

      Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Riffel, Rogério; Bianchin, Marina; Zakamska, Nadia L.; Dutra, Daniel Ruschel; Schönell Júnior, Astor João; Rosario, David; Rodriguez-Ardila, Alberto; Fischer, Travis C.; Davies, Richard I.; Dametto, Natacha Zanon; Hahn, Luis Gabriel Dahmer; Crenshaw, Daniel Michael; Burtscher, Leonard; Bentz, Misty Cherie (2021) [Artigo de periódico]
      We use the Gemini NIFS instrument to map the H22.1218μm and Brγ flux distributions in the inner 0.04–2 kpc of a sample of 36 nearby active galaxies (0.001 ≲ z ≲ 0.056) at spatial resolutions from 4 to 250 pc. We find ...

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

      Riffel, Rogemar André; Storchi-Bergmann, Thaisa; Riffel, Rogério; Bianchin, Marina; Zakamska, Nadia L.; Dutra, Daniel Ruschel; Bentz, Misty Cherie; Burtscher, Leonard; Crenshaw, Daniel Michael; Hahn, Luis Gabriel Dahmer; Dametto, Natacha Zanon; Davies, Richard I.; Diniz, Marlon Rodrigo; Fischer, Travis C.; Harrison, Chris; Mainieri, Vincenzo; Revalski, Mitchell; Rodriguez-Ardila, Alberto; Rosario, David; Schönell Júnior, Astor João (2023) [Artigo de periódico]
      We present the hot molecular and warm ionized gas kinematics for 33 nearby (0.001 ≲ z ≲ 0.056) X-ray selected active galaxies using the H22.1218μ m and Br γ emission lines observed in the K band with the Gemini near-infrared ...

    • The complex, dusty narrow-line region of NGC 4388 : gas–jet interactions, outflows and extinction revealed by near-IR spectroscopy 

      Rodrigues-Ardila, Alberto; Mason, Rachel E.; Martins, Lucimara Pires; Ramos Almeida, Cristina; Riffel, Rogemar André; Riffel, Rogério; Lira, Paulina; Gonzalez Martin, Omaira; Dametto, Natacha Zanon; Flohic, Helene; Ho, Luis C.; Dutra, Daniel Ruschel; Thanjavur, Karun; Colina, Luis; McDermid, Richard; Perlman, Eric; Winge, Claudia (2017) [Artigo de periódico]
      We present Gemini/GNIRS (Gemini Near-Infrared Spectrograph) spectroscopy of the Seyfert 2 galaxy NGC 4388, with simultaneous coverage from 0.85 to 2.5 μm. Several spatially extended emission lines are detected for the first ...