146 citations · 704 across the 20 of their papers we have counts for
20 papers
Towards an observationally motivated AGN dusty torus model. I. Dust chemical composition from the modeling of Spitzer spectra
Omar Ulises Reyes-Amador, Jacopo Fritz, Omaira González-Martín +7
Spectral energy distribution (SED) fitting is one of most commonly used techniques to study the dust properties in Active Galactic Nuclei (AGN). Works implementing this technique c…
AGN feedback in the Local Universe: multiphase outflow of the Seyfert galaxy NGC 5506
Federico Esposito, Almudena Alonso-Herrero, Santiago García-Burillo +21
We present new optical GTC/MEGARA seeing-limited (0.9") integral-field observations of NGC 5506, together with ALMA observations of the CO(3-2) transition at a 0.2" (25 pc) resolut…
Multi-phase characterization of AGN winds in 5 local type-2 quasars
G. Speranza, C. Ramos Almeida, J. A. Acosta-Pulido +9
We present MEGARA (Multi-Espectrógrafo en GTC de Alta Resolución para Astronomía) Integral Field Unit (IFU) observations of 5 local type-2 quasars (QSO2s, z ) from the Qu…
The Galaxy Activity, Torus, and Outflow Survey (GATOS). III: Revealing the inner icy structure in local AGN
I. García-Bernete, A. Alonso-Herrero, D. Rigopoulou +24
We use JWST/MIRI MRS spectroscopy of a sample of six local obscured type 1.9/2 active galactic nuclei (AGN) to compare their nuclear mid-IR absorption bands with the level of nucle…
The role of grain size in AGN torus dust models
Omaira González-Martín, Cristina Ramos Almeida, Jacopo Fritz +10
Fits the infrared spectra from the nuclear regions of AGN can place constraints on the dust properties, distribution, and geometry by comparison with models. However, none of the c…
Constraining the X-ray reflection in low accretion rate AGN using XMM-Newton, NuSTAR and Swift
Y. Díaz, L. Hernández-García, P. Arévalo +8
An interesting feature in active galactic nuclei (AGN) accreting at low rate is the weakness of the reflection features in their X-ray spectra, which can result from the gradual di…
Torus and polar dust dependence on AGN properties
I. García-Bernete, O. González-Martín, C. Ramos Almeida +8
We present a statistical analysis of the properties of the obscuring material around active galactic nuclei (AGN). This study represents the first of its kind for an ultra-hard X-r…
A statistical study of the optical spectral variability in gamma-ray blazars
J. Otero-Santos, J. A. Acosta-Pulido, J. Becerra González +5
Blazars optical emission is generally dominated by relativistic jets, although the host galaxy, accretion disk and broad line region (BLR) may also contribute significantly. Disent…
Observational hints on the torus obscuring gas behaviour through X-rays with NuSTAR data
Natalia Osorio-Clavijo, Omaira González-Martín, Sebastián F. Sánchez-Sánchez +5
According to theory, the torus of active galactic nuclei (AGN) is sustained from a wind coming off the accretion disk, and for low efficient AGN, it has been proposed that such str…
The Galaxy Activity, Torus and Outflow Survey (GATOS): II. Torus and polar dust emission in nearby Seyfert galaxies
A. Alonso-Herrero, S. García-Burillo, S. F. Hoenig +30
We compare mid-IR and ALMA far-IR images of 12 nearby Seyferts selected from GATOS. The mid-IR unresolved emission contributes more than 60% of the nuclear emission in most galaxie…
The Galaxy Activity, Torus and Outflow Survey (GATOS) I. ALMA images of dusty molecular tori in Seyfert galaxies
S. García-Burillo, A. Alonso-Herrero, C. Ramos Almeida +32
We present the first results of the Galaxy Activity, Torus and Outflow Survey (GATOS), a project aimed at understanding the properties of the dusty molecular tori and their connect…
Multi-phase feedback processes in the Sy2 galaxy NGC 5643
I. García-Bernete, A. Alonso-Herrero, S. García-Burillo +11
We study the multi-phase feedback processes in the central ~3 kpc of the barred Sy 2 galaxy NGC 5643. We use observations of the cold molecular gas (ALMA CO(2-1)) and ionized gas (…
The inner view of NGC 1052 using multiple X-ray observations
Natalia Osorio-Clavijo, Omaira González-Martín, Iossif Papadakis +2
In this paper, we make a multi-epoch analysis of NGC 1052, one of the prototypical LLAGN, using XMM-Newton, Suzaku and NuSTAR observations, taken from 2001 to 2017. This is the fir…
Torus model properties of an ultra-hard X-ray selected sample of Seyfert galaxies
I. García-Bernete, C. Ramos Almeida, A. Alonso-Herrero +15
We characterize for the first time the torus properties of an ultra-hard X-ray (14-195 keV) volume-limited (DL<40 Mpc) sample of 24 Seyfert (Sy) galaxies (BCS40 sample). The sample…
A comparison between the soft X-ray and [O III] morphologies of active galactic nuclei
Carlos Gómez-Guijarro, Omaira González-Martín, Cristina Ramos Almeida +2
Several studies of nearby active galactic nuclei (AGN) have shown that the soft X-ray emission presents a size and morphology that resembles that of the narrow-line region (NLR) tr…
The nuclear and extended mid-infrared emission of Seyfert galaxies
I. García-Bernete, C. Ramos Almeida, J. A. Acosta-Pulido +10
We present subarcsecond resolution mid-infrared (MIR) images obtained with 8-10 m-class ground-based telescopes of a complete volume-limited (DL<40 Mpc) sample of 24 Seyfert galaxi…
Upholding the Unified Model for Active Galactic Nuclei: VLT/FORS2 Spectropolarimetry of Seyfert 2 galaxies
Cristina Ramos Almeida, M. J. Martínez Gonzalez, A. Asensio Ramos +5
The origin of the unification model for Active Galactic Nuclei (AGN) was the detection of broad hydrogen recombination lines in the optical polarized spectrum of the Seyfert 2 gala…
X-ray spectral variability of Seyfert 2 galaxies
L. Hernández-García, J. Masegosa, O. González-Martín +1
Variability across the electromagnetic spectrum is a property of AGN that can help constraining the physical properties of these galaxies. This is the third of a serie of papers wi…
The soft X-ray and narrow-line emission of Mrk573 on kiloparcec scales
O. Gonzalez-Martin, J. A. Acosta-Pulido, A. M. Perez Garcia +1
We present a study of the circumnuclear region of the nearby Seyfert galaxy Mrk573 using Chandra, XMM-Newton and HST data. The X-ray morphology shows a biconical region extending u…
The Stellar Kinematic Center and the True Galactic Nucleus of NGC253
F. Müller-Sánchez, O. González-Martín, J. A. Fernández-Ontiveros +2
We present the first sub-arcsecond resolution two-dimensional stellar kinematics and X-ray observations of the prototypical starburst galaxy NGC253 which define the position and na…