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High resolution mapping of molecular tori with ALMA
F. Combes, A. Audibert, S. Garcia-Burillo +11
Recent high resolution mapping of the circum-nuclear regions of Active Galactic Nuclei (AGN) has revealed the existence of geometrically thin nuclear disks, in general randomly ori…
The Galaxy Activity, Torus, and Outflow Survey (GATOS). Black hole mass estimation using machine learning
R. Poitevineau, F. Combes, S. Garcia-Burillo +23
The detailed feeding and feedback mechanisms of Active Galactic Nuclei (AGN) are not yet well known. For low-luminosity and obscured AGN, as well as late-type galaxies, determining…
AGN feedback in action in the molecular gas ring of the Seyfert galaxy NGC7172
A. Alonso-Herrero, S. Garcia-Burillo, M. Pereira-Santaella +14
We present new ALMA observations of the CO(3-2) transition and 854micron continuum at 0.06-0.3" resolution, together with new VLT/SINFONI observations of NGC7172. This is a luminou…
Gas, dust, and the CO-to-molecular gas conversion factor in low-metallicity starbursts
L. K. Hunt, F. Belfiore, F. Lelli +19
The factor relating CO emission to molecular hydrogen column density, XCO, is still subject to uncertainty, in particular at low metallicity. Here, to quantify XCO at two different…
First extragalactic detection of a phosphorus-bearing molecule with ALCHEMI: phosphorus nitride (PN)
D. Haasler, V. M. Rivilla, S. Martín +16
Phosphorus (P) is a crucial element for life given its central role in several biomolecules. P-bearing molecules have been discovered in different regions of the Milky Way, but not…
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…
Black hole feeding and star formation in NGC 1808
A. Audibert, F. Combes, S. García-Burillo +11
We report on Atacama Large Millimeter Array (ALMA) observations of CO(3-2) emission in the Seyfert2/starburst galaxy NGC1808, at a spatial resolution of 4pc. Our aim is to investig…
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…
A nuclear molecular outflow in the Seyfert galaxy NGC3227
A. Alonso-Herrero, S. Garcia-Burillo, M. Pereira-Santaella +24
We present ALMA observations of the CO(2-1) and CO(3-2) molecular gas transitions and associated (sub)-mm continua of the nearby Seyfert 1.5 galaxy NGC3227 with angular resolutions…
ALMA observations of molecular tori around massive black holes
F. Combes, S. Garcia-Burillo, A. Audibert +12
We report ALMA observations of CO(3-2) emission in a sample of 7 Seyfert/LINER galaxies at the unprecedented spatial resolution of 0.1'' = 4-9 pc. Our aim is to explore the close e…
Molecular line emission in NGC 4945, imaged with ALMA
C. Henkel, S. Muehle, G. Bendo +31
NGC 4945 is one of the nearest (~3.8 Mpc; 1" ~ 19 pc) starburst galaxies. ALMA band 3 (3--4\,mm) observations of HCN, HCO+, CS, C3H2, SiO, HCO, and CH3C2H were carried out with ~2"…
ALMA imaging of C2H emission in the disk of NGC1068
S. Garcia-Burillo, S. Viti, F. Combes +16
We study the feedback of star formation and nuclear activity on the chemistry of molecular gas in NGC1068, a nearby (D=14Mpc) Seyfert 2 barred galaxy, by analyzing if the abundance…
Physical conditions of the molecular gas in metal-poor galaxies
L. K. Hunt, A. Weiss, C. Henkel +8
Studying the molecular component of the interstellar medium in metal-poor galaxies has been challenging because of the faintness of carbon monoxide emission, the most common proxy…
ALMA resolves the torus of NGC 1068: continuum and molecular line emission
S. Garcia-Burillo, F. Combes, C. Ramos Almeida +18
We have used the Atacama Large Millimeter Array (ALMA) to map the emission of the CO(6-5) molecular line and the 432 μm continuum emission from the 300 pc-sized circumnuclear disk…
High-resolution imaging of the molecular outflows in two mergers: IRAS17208-0014 and NGC1614
S. Garcia-Burillo, F. Combes, A. Usero +11
Galaxy evolution scenarios predict that the feedback of star formation and nuclear activity (AGN) can drive the transformation of gas-rich spiral mergers into ULIRGs, and, eventual…
Molecular line emission in NGC1068 imaged with ALMA. I An AGN-driven outflow in the dense molecular gas
S. Garcia-Burillo, F. Combes, A. Usero +22
We investigate the fueling and the feedback of star formation and nuclear activity in NGC1068, a nearby (D=14Mpc) Seyfert 2 barred galaxy, by analyzing the distribution and kinemat…
ALMA observations of cool dust in a low-metallicity starburst, SBS0335-052
L. K. Hunt, L. Testi, V. Casasola +9
We present Atacama Large Millimeter/submillimeter Array (ALMA) Cycle 0 Band 7 observations of an extremely metal-poor dwarf starburst galaxy in the Local Universe, SBS0335-052 (12+…
Molecular gas in NUclei of GAlaxies (NUGA) XV. Molecular gas kinematics in the inner 3kpc of NGC6951
T. P. R. van der Laan, E. Schinnerer, F. Boone +6
Within the NUclei of GAlaxies project we have obtained IRAM PdBI and 30m 12CO(1-0) and 12CO(2-1) observations of the spiral galaxy NGC 6951. Previous work shows that there is indir…