Bibcode
Domínguez-Fernández, A. J.; Alonso-Herrero, A.; García-Burillo, S.; Colina, L.; Esquej, P.; Imanishi, M.; Levenson, N.; Mason, R.; Packham, C.; Pereira-Santaella, M.; Ramos Almeida, C.; Rigopoulou, D.; Roche, P.; Rodríguez-Espinosa, J. M.; Sani, E.
Bibliographical reference
Highlights on Spanish Astrophysics X, Proceedings of the XIII Scientific Meeting of the Spanish Astronomical Society held on July 16-20, 2018, in Salamanca, Spain, ISBN 978-84-09-09331-1. B. Montesinos, A. Asensio Ramos, F. Buitrago, R. Schödel, E. Villaver, S. Pérez-Hoyos, I. Ordóñez-Etxeberria (eds.) p. 212-213
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3
2019
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0
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Description
One of the most challenging open questions in Astrophysics is how Active
Galactic Nuclei (AGNs) are fueled. For this to happen, gas has to be
driven from the outskirts of the galaxy to the nuclear regions.
Different mechanisms such as bars (large-scale and nuclear), lopsided
disks, m=1, 2 instabilities or warps have been suggested to remove the
gas angular momentum at different spatial scales of galaxy disks. On the
other hand, stellar and AGN feedback in the form of outflows prevents
galaxies from becoming overmassive. In this work we present the results
of interferometric observations of the cold CO(2-1) molecular gas and
1.3 mm continuum obtained with NOEMA of five nearby (mean luminosity
distance of 34 Mpc) Seyfert galaxies. The superb angular resolution of
the NOEMA data (˜0.6"˜100 pc) enables us to study the
CO(2-1) morphology and kinematics as well as to measure the molecular
gas content of the nuclear regions. Although all galaxies in our sample
show evidence of non-circular motions in their nuclear regions, these
are detected more clearly in the interacting systems. Our goal is to
find out if these motions are related to molecular gas flows.