Navegação Ciências Exatas e da Terra por Autor "Diniz, Marlon Rodrigo"
Resultados 1-15 de 15
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A close look at the dwarf AGN of NGC 4395 : optical and near-IR integral field spectroscopy
(2019) [Artigo de periódico]Intermediate-mass black holes (103–105 M⊙) in the centre of dwarf galaxies are believed to be analogous to growing active galactic nuclei (AGNs) in the early Universe. Their characterization can provide insight about the ... -
A correlation between the stellar and [Fe II] velocity dispersions in active galaxies
(2013) [Artigo de periódico]We use near-infrared (near-IR) spectroscopic data from the inner few hundred parsecs of a sample of 47 active galaxies to investigate possible correlations between the stellar velocity dispersion (σ ), obtained from the ... -
Disentangling the near-infrared continuum spectral components of the inner 500 pc of Mrk 573 : two-dimensional maps
(2017) [Artigo de periódico]We present a near-infrared (near-IR) study of the spectral components of the continuum in the inner 500×500 pc2 of the nearby Seyfert galaxy Mrk 573 using adaptive optics near-IR integral field spectroscopy with the ... -
Feeding versus feedback in AGN from near-infrared IFU observations XI : NGC 2110
(2015) [Artigo de periódico]We present a two-dimensional mapping of the gas flux distributions, as well as of the gas and stellar kinematics in the inner 220 pc of the Seyfert galaxy NGC 2110, using K-band integral field spectroscopy obtained with ... -
Gemini near infrared field spectrograph observations of the Seyfert 2 galaxy Mrk 573 : in situ acceleration of ionized and molecular gas off fueling
(2017) [Artigo de periódico]We present near-infrared and optical emission-line and stellar kinematics of the Seyfert 2 galaxy Mrk 573 using the Near-Infrared Field Spectrograph (NIFS) at Gemini North and Dual Imaging Spectrograph at Apache Point ... -
Gemini NIFS survey of feeding and feedback in nearby active galaxies III. Ionized versus warm molecular gas masses and distributions
(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
(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 processes in nearby active galaxies : II. The sample and surface mass density profilesthe hidden monster and its outflow
(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
(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 ... -
A Gemini–NIFS view of the merger remnant NGC 34
(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 ... -
Outflows, inflows, and young stars in the inner 200 pc of the Seyfert galaxy NGC 2110
(2019) [Artigo de periódico]We present a 2D mapping of stellar population age components, emission-line fluxes, gas excitation, and kinematics within the inner ∼200 pc of the Seyfert 2 galaxy NGC 2110. We used the Gemini North Integral Field Spectrograph ... -
A panchromatic spatially resolved study of the inner 500 pc of NGC 1052 : II. Gas excitation and kinematics
(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
(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 ... -
The AGNIFS survey : spatially resolved observations of hot molecular and ionized outflows in nearby active galaxies
(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 ... -
Two-dimensional mapping of young stars in the inner 180 pc of NGC 1068 : correlation with molecular gas ring and stellar kinematics
(2012) [Artigo de periódico]We report the first two-dimensional mapping of the stellar population and non-stellar continua within the inner 180 pc (radius) of NGC 1068 at a spatial resolution of 8 pc, using integral field spectroscopy in the ...
