Search Results - "Ramos Almeida, Cristina"
-
1
Nuclear obscuration in active galactic nuclei
Published in Nature astronomy (01-10-2017)“…The material surrounding accreting supermassive black holes connects the active galactic nucleus with its host galaxy and, besides being responsible for…”
Get full text
Journal Article -
2
Quantifying the AGN-driven outflows in ULIRGs (QUADROS) – I: VLT/Xshooter observations of nine nearby objects
Published in Monthly notices of the Royal Astronomical Society (01-02-2018)“…Abstract Although now routinely incorporated into hydrodynamic simulations of galaxy evolution, the true importance of the feedback effect of the outflows…”
Get full text
Journal Article -
3
The largely unconstrained multiphase nature of outflows in AGN host galaxies
Published in Nature astronomy (01-03-2018)“…Observations and simulations show that outflows in active galactic nuclei contain gas in different phases. To understand their true impact on galaxy evolution,…”
Get full text
Journal Article -
4
The demographics of obscured AGN from X-ray spectroscopy guided by multiwavelength information
Published in Monthly notices of the Royal Astronomical Society (01-01-2023)“…A complete census of active galactic nuclei (AGNs) is a prerequisite for understanding the growth of supermassive black holes across cosmic time. A significant…”
Get full text
Journal Article -
5
Observational Tests of Active Galactic Nuclei Feedback: An Overview of Approaches and Interpretation
Published in Galaxies (01-04-2024)“…Growing supermassive black holes (Active Galactic Nuclei; AGN) release energy with the potential to alter their host galaxies and larger-scale environment; a…”
Get full text
Journal Article -
6
Exploring the Mid-infrared SEDs of Six AGN Dusty Torus Models. II. The Data
Published in The Astrophysical journal (10-10-2019)“…This is the second in a series of papers devoted to exploring a set of six dusty models of active galactic nuclei (AGN) with available spectral energy…”
Get full text
Journal Article -
7
An Extended Lyα Outflow from a Radio Galaxy at z = 3.7?
Published in Astrophysical journal. Letters (01-12-2023)“…Spatially resolved observations of active galactic nuclei (AGN) host galaxies undergoing feedback processes are one of the most relevant avenues through which…”
Get full text
Journal Article -
8
A comparison between the soft X-ray and [O III] morphologies of active galactic nuclei
Published in Monthly notices of the Royal Astronomical Society (11-08-2017)“…Abstract Several studies of nearby active galactic nuclei (AGNs) have shown that the soft X-ray emission presents a size and morphology resembling that of the…”
Get full text
Journal Article -
9
The Galaxy Activity, Torus, and Outflow Survey (GATOS). IV. Exploring Ionized Gas Outflows in Central Kiloparsec Regions of GATOS Seyferts
Published in The Astrophysical journal (01-10-2024)“…Utilizing JWST MIRI/Medium Resolution Spectrograph integral field unit observations of the kiloparsec-scale central regions, we showcase the diversity of…”
Get full text
Journal Article -
10
Dust beyond the torus: revealing the mid-infrared heart of local Seyfert ESO 428-G14 with JWST/MIRI
Published in Monthly notices of the Royal Astronomical Society (06-08-2024)“…ABSTRACT Polar dust has been discovered in a number of local active galactic nuclei (AGN), with radiation-driven torus models predicting a wind to be its main…”
Get full text
Journal Article -
11
Hints on the Gradual Resizing of the Torus in AGNs through Decomposition of Spitzer/IRS Spectra
Published in The Astrophysical journal (20-05-2017)“…Several authors have claimed that less luminous active galactic nuclei (AGNs) are not capable of sustaining a dusty torus structure. Thus, a gradual resizing…”
Get full text
Journal Article -
12
Polycyclic Aromatic Hydrocarbon Emission in the Central Regions of Three Seyferts and the Implication for Underlying Feedback Mechanisms
Published in Astrophysical journal. Letters (01-11-2024)“…We analyze JWST Mid-Infrared Instrument/Medium Resolution Spectrograph integral field unit observations of three Seyferts from the Galactic Activity, Torus,…”
Get full text
Journal Article -
13
The stellar spectral features of nearby galaxies in the near infrared: tracers of thermally pulsing asymptotic giant branch stars?
Published in Monthly notices of the Royal Astronomical Society (01-07-2015)“…We analyse the stellar absorption features in high signal-to-noise ratio (S/N) near-infrared (NIR) spectra of the nuclear region of 12 nearby galaxies, mostly…”
Get full text
Journal Article -
14
ALMA reveals a compact and massive molecular outflow driven by the young AGN in a nearby ULIRG
Published in Monthly notices of the Royal Astronomical Society (05-04-2024)“…ABSTRACT The ultraluminous infrared galaxy F13451+1232 is an excellent example of a galaxy merger in the early stages of active galactic nucleus (AGN)…”
Get full text
Journal Article -
15
THE DIFFERENCES IN THE TORUS GEOMETRY BETWEEN HIDDEN AND NON-HIDDEN BROAD LINE ACTIVE GALACTIC NUCLEI
Published in The Astrophysical journal (20-04-2015)“…ABSTRACT We present results from the fitting of infrared (IR) spectral energy distributions of 21 active galactic nuclei (AGNs) with clumpy torus models. We…”
Get full text
Journal Article -
16
TORUS AND ACTIVE GALACTIC NUCLEUS PROPERTIES OF NEARBY SEYFERT GALAXIES: RESULTS FROM FITTING INFRARED SPECTRAL ENERGY DISTRIBUTIONS AND SPECTROSCOPY
Published in The Astrophysical journal (01-08-2011)“…We used the CLUMPY torus models and a Bayesian approach to fit the infrared spectral energy distributions and ground-based high angular resolution mid-infrared…”
Get full text
Journal Article -
17
Scrutinizing evidence for the triggering of active galactic nuclei in the outskirts of massive galaxy clusters at z ≈ 1
Published in Monthly notices of the Royal Astronomical Society (01-07-2024)“…ABSTRACT Environmental effects are believed to play an important yet poorly understood role in triggering accretion events onto the supermassive black holes…”
Get full text
Journal Article -
18
Mapping the stellar population and gas excitation of MaNGA galaxies with megacubes. Results for AGN versus control sample
Published in Monthly notices of the Royal Astronomical Society (29-07-2023)“…ABSTRACT We present spaxel-by-spaxel stellar population fits for the ∼10 000 MaNGA data cubes. We provide multiple extension fits files, nominated as…”
Get full text
Journal Article -
19
Accretion properties of X-ray AGN: evidence for radiation-regulated obscuration with redshift-dependent host galaxy contribution
Published in Monthly notices of the Royal Astronomical Society (01-08-2024)“…ABSTRACT We adopt a Bayesian X-ray spectral approach to investigate the accretion properties of unobscured ($20\lt \log (N_{\rm H}/{\rm cm}^{-2}\lt 22$) and…”
Get full text
Journal Article -
20
The Emission and Distribution of Dust of the Torus of NGC 1068
Published in The Astrophysical journal (01-06-2018)“…We present observations of NGC 1068 covering the 19.7-53.0 m wavelength range using FORCAST and HAWC+ on board SOFIA. Using these observations,…”
Get full text
Journal Article