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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…
Towards measuring supermassive black hole masses with interferometric observations of the dust continuum
GRAVITY Collaboration, A. Amorim, G. Bourdarot +40
This work focuses on active galactic nuclei (AGNs), and the relation between the sizes of the hot dust continuum and the broad-line region (BLR). We find that the continuum size me…
A geometric distance to the supermassive black Hole of NGC 3783
GRAVITY Collaboration, A. Amorim, M. Bauböck +45
The angular size of the broad line region (BLR) of the nearby active galactic nucleus (AGN) NGC 3783 has been spatially resolved by recent observations with VLTI/GRAVITY. A reverbe…
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 hot dust in the heart of NGC 1068's torus: A 3D radiative model constrained with GRAVITY/VLTi
Pierre Vermot, Yann Clénet, Damien Gratadour +5
The central region of NGC 1068 is one of the closest and most studied Active Galactic Nucleus. It is known to be of type 2, meaning that its accretion disk is obscured by a large a…
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…
High angular resolution polarimetric imaging of the nucleus of NGC 1068: Disentangling the polarising mechanisms
L. Grosset, D. Rouan, F. Marin +8
Polarisation is a decisive method to study the inner region of active galactic nuclei (AGNs) since it is not affected by contrast issues similarly to how classical imaging is. When…
The central parsec of NGC 3783: a rotating broad emission line region, asymmetric hot dust structure, and compact coronal line region
GRAVITY Collaboration, A. Amorim, M. Bauböck +47
Using VLTI/GRAVITY and SINFONI data, we investigate the sub-pc gas and dust structure around the nearby type 1 AGN hosted by NGC 3783. The K-band coverage of GRAVITY uniquely allow…
The spatially resolved broad line region of IRAS 09149-6206
GRAVITY Collaboration, A. Amorim, W. Brandner +41
We present new near-infrared VLTI/GRAVITY interferometric spectra that spatially resolve the broad Br emission line in the nucleus of the active galaxy IRAS 09149-6206. We use t…
An image of the dust sublimation region in the nucleus of NGC 1068
GRAVITY Collaboration, O. Pfuhl, R. Davies +40
We present near-infrared interferometric data on the Seyfert 2 galaxy NGC 1068, obtained with the GRAVITY instrument on the European Southern Observatory Very Large Telescope Inter…
ALMA images the many faces of the NGC1068 torus and its surroundings
S. Garcia-Burillo, F. Combes, C. Ramos Almeida +18
We investigate the fueling and the feedback of nuclear activity in the Seyfert 2 galaxy NGC1068, by studying the distribution and kinematics of molecular gas in the torus and its c…
The resolved size and structure of hot dust in the immediate vicinity of AGN
GRAVITY Collaboration, J. Dexter, J. Shangguan +42
We use VLTI/GRAVITY near-infrared interferometry measurements of 8 bright, Type 1 AGN to study the size and structure of hot dust heated by the central engine. We partially resolve…
Clumpiness of the interstellar medium in the central parsec of the Galaxy from H2 flux extinction correlation
Anna Ciurlo, Thibaut Paumard, Daniel Rouan +1
The central parsec of the Galaxy contains a young star cluster embedded in a complex interstellar medium. The latter mainly consists of a torus of dense clumps and streams of molec…
Stellar cusp and warm dust at the heart of NGC1068
Daniel Rouan, Lucas Grosset, Damien Gratadour
Establishing precisely how stars and interstellar medium distribute within the central 100 pc area around an AGN, down to the pc scale, is key for understanding how the very final…
Exploring the inner parsecs of Active Galactic Nuclei using near-infrared high resolution polarimetric simulations with MontAGN
Lucas Grosset, Daniel Rouan, Damien Gratadour +4
Aims: In this paper, we aim to constrain the properties of dust structures in the central first parsecs of Active Galactic Nuclei (AGN). Our goal is to study the required optical d…
Understanding active galactic nuclei using near-infrared high angular resolution polarimetry I : MontAGN - stokes comparison
Lucas Grosset, Frédéric Marin, Damien Gratadour +5
In this first research note of a series of two, we present a comparison between two Monte Carlo radiative transfer codes: MontAGN and STOKES. Both were developed in order to better…
Understanding Active Galactic Nuclei using near-infrared high angular resolution polarimetry II: Preliminary results
F. Marin, L. Grosset, R. Goosmann +5
In this second research note of a series of two, we present the first near-infrared results we obtained when modeling Active Galactic Nuclei (AGN). Our first proceedings showed the…
Hot molecular hydrogen in the central parsec of the Galaxy through near-infrared 3D fitting
Anna Ciurlo, Thibaut Paumard, Daniel Rouan +1
Aims. We have investigated neutral gas in the central cavity of the circumnuclear disk (CND) at the Galactic Center, where the ionized minispiral lies, to describe the H2 distribut…
The Science Case for Multi-Object Spectroscopy on the European ELT
Chris Evans, Mathieu Puech, Jose Afonso +68
This White Paper presents the scientific motivations for a multi-object spectrograph (MOS) on the European Extremely Large Telescope (E-ELT). The MOS case draws on all fields of co…
Flares and variability from Sagittarius A*: five nights of simultaneous multi-wavelength observations
X. Haubois, K. Dodds-Eden, A. Weiss +8
Aims. We report on simultaneous observations and modeling of mid-infrared (MIR), near-infrared (NIR), and submillimeter (submm) emission of the source Sgr A* associated with the su…
An Extremely Top-Heavy IMF in the Galactic Center Stellar Disks
H. Bartko, F. Martins, S. Trippe +19
We present new observations of the nuclear star cluster in the central parsec of the Galaxy with the adaptive optics assisted, integral field spectrograph SINFONI on the ESO/VLT. O…
Evidence for X-ray synchrotron emission from simultaneous mid-IR to X-ray observations of a strong Sgr A* flare
K. Dodds-Eden, D. Porquet, G. Trap +22
This paper reports measurements of Sgr A* made with NACO in L' -band (3.80 um), Ks-band (2.12 um) and H-band (1.66 um) and with VISIR in N-band (11.88 um) at the ESO VLT, as well a…