45 citations · 219 across the 13 of their papers we have counts for
13 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…
Testing physical scenarios for the reflection features of type-1 AGN using XMM-Newton and NuSTAR simultaneous observations
César Ivan Victoria-Ceballos, Omaira González-Martín, Josefa Masegosa +3
Above 3 keV, the X-ray spectrum of the active galactic nuclei (AGN) is characterized by the intrinsic continuum and compton reflection features. For type-1 AGN, several regio…
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…
AGN in the CALIFA survey: X-ray detection of nuclear sources
Natalia Osorio-Clavijo, Omaira González-Martín, Sebastián F. Sánchez-Sánchez +2
A complete demographic of active galactic nuclei (AGN) is essential to understand the evolution of the Universe. Optical surveys estimate the population of AGN in the local Univers…
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…
The complex infrared dust continuum emission of NGC1068: ground-based N- and Q-band spectroscopy and new radiative transfer models
César Ivan Victoria-Ceballos, Omaira González-Martín, Jacopo Fritz +7
Thanks to ground-based infrared and sub-mm observations the study of the dusty torus of nearby AGN has greatly advanced in the last years. With the aim of further investigating the…
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…
Active galactic nuclei ghosts: A systematic search for faded nuclei
Donaji Esparza-Arredondo, Natalia Osorio-Clavijo, Omaira González-Martín +5
Physical processes such as re-ignition, enhancement, and fading of active galactic nuclei (AGN) are not entirely understood because the timeline of these events is expected to last…
Physical parameters of the torus for the type 2 Seyfert IC 5063 from mid-IR and X-ray simultaneous spectral fitting
Donaji Esparza-Arredondo, Omaira González-Martín, Deborah Dultzin +7
In order to understand the diversity of classes observed in active galactic nuclei (AGN), a geometrically and optically thick torus of gas and dust is required to obscure the centr…
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…
Exploring the mid-infrared SEDs of six AGN dusty torus models II: the data
O. González-Martín, J. Masegosa, I. García-Bernete +9
This is the second in a series of papers devoted to explore a set of six dusty models of active galactic nuclei (AGN) with available spectral energy distributions (SEDs). These mod…
Exploring the mid-infrared SEDs of six AGN dusty torus models I: synthetic spectra
O. González-Martín, J. Masegosa, I. García-Bernete +9
At distances from the active galaxy nucleus (AGN) where the ambient temperature falls below ~1500-1800 K, dust is able to survive. It is thus possible to have a large dusty structu…
AGN torus detectability at sub-millimeter wavelengths: What to expect from ALMA continuum data
Alice Pasetto, Omaira González-Martín, Donaji Esparza-Arredondo +3
We study the detectability of the emission associated with the AGN dusty structure at sub-mm wavelengths using ALMA, in a theoretical and observational way. Theoretically, we use t…