Star formation and gas flows in the centre of the NUGA galaxy NGC 1808 observed with SINFONI

Abstract

NGC 1808 is a nearby barred spiral galaxy which hosts young stellar clusters in a patchy circumnuclear ring with a radius of $\sim 240\mathrm{pc}$. In order to study the gaseous and stellar kinematics and the star formation properties of the clusters, we perform seeing-limited $H+K$-band near-infrared integral-field spectroscopy with SINFONI of the inner $\sim 600\mathrm{pc}$. From the $M_{\mathrm{BH}}-{\sigma }_{\ast }$ relation, we find a black hole mass of a few $10^7{M}_{\odot }$. We estimate the age of the young stellar clusters in the circumnuclear ring to be $\lesssim 10\mathrm{Myr}$. No age gradient along the ring is visible. However, the starburst age is comparable to the travel time along the ring, indicating that the clusters almost completed a full orbit along the ring during their life time. In the central $\sim 600\mathrm{pc}$, we find a hot molecular gas mass of $\sim 730M_{\odot }$ which, with standard conversion factors, corresponds to a large cold molecular gas reservoir of several $10^8{M}_{\odot }$, in accordance with CO measurements from the literature. The gaseous and stellar kinematics show several deviations from pure disc motion, including a circumnuclear disc and signs of a nuclear bar potential. In addition, we confirm streaming motions on $\sim 200\mathrm{pc}$ scale that have recently been detected in CO(1-0) emission. Due to our enhanced angular resolution of $<1\mathrm{arcsec}$, we find further streaming motion within the inner arcsecond, that have not been detected until now. Despite the flow of gas towards the centre, no signs for significant AGN activity are found. This raises the questions what determines whether the infalling gas will fuel an AGN or star formation.

arXiv comment19 pages, 19 figures, 3 tables; accepted for publication in Astronomy & Astrophysics

References in corpus (102)

• Star Formation in Galaxies Along the Hubble Sequence
• The Dust Content and Opacity of Actively Star-Forming Galaxies
• The Global Schmidt Law in Star Forming Galaxies
• A Fundamental Relation Between Supermassive Black Holes and Their Host Galaxies
• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• Starburst99: Synthesis Models for Galaxies with Active Star Formation
• The Host Galaxies of AGN
• A Relationship Between Nuclear Black Hole Mass and Galaxy Velocity Dispersion
• Theoretical Modeling of Starburst Galaxies
• Parametric Recovery of Line-of-Sight Velocity Distributions from Absorption-Line Spectra of Galaxies via Penalized Likelihood
• The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales
• The Relation between Black Hole Mass, Bulge Mass, and Near-Infrared Luminosity
• On the Black Hole Mass - Bulge Mass Relation
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• The M-sigma and M-L Relations in Galactic Bulges and Determinations of their Intrinsic Scatter
• Adaptive spatial binning of integral-field spectroscopic data using Voronoi tessellations
• HyperLEDA. III. The catalogue of extragalactic distances
• Observational evidence for AGN feedback in early-type galaxies
• The 1000 Brightest HIPASS Galaxies: HI Properties
• How Do Massive Black Holes Get Their Gas?
• Optimization of Starburst99 for Intermediate-Age and Old Stellar Populations
• Molecular line emission in NGC1068 imaged with ALMA. I An AGN-driven outflow in the dense molecular gas
• A Close Look at Star Formation around Active Galactic Nuclei
• The Effects of Stellar Rotation. II. A Comprehensive Set of Starburst99 Models
• Black hole variability and the star formation-AGN connection: Do all star-forming galaxies host an AGN?
• An XMM-Newton spectral survey of 12 micron selected galaxies. I. X-ray data
• A Library of Theoretical Ultraviolet Spectra of Massive, Hot Stars for Evolutionary Synthesis
• Outflows from AGN: Kinematics of the Narrow-Line and Coronal-Line Regions in Seyfert Galaxies
• How do minor mergers promote inside-out growth of ellipticals, transforming the size, density profile and dark matter fraction?
• The (black hole mass)-(host spheroid luminosity) relation at high and low masses, the quadratic growth of black holes, and intermediate-mass black hole candidates
• Supermassive black holes do not correlate with galaxy disks or pseudobulges
• The SAURON project - VII. Integral-field absorption and emission-line kinematics of 24 spiral galaxy bulges
• 3D Integral Field Observations of Ten Galactic Winds - I. Extended phase (>10 Myr) of mass/energy injection before the wind blows
• A log-quadratic relation for predicting supermassive black hole masses from the host bulge Sersic index
• AINUR: Atlas of Images of NUclear Rings
• The Star-Forming Torus and Stellar Dynamical Black Hole Mass in the Seyfert 1 Nucleus of NGC3227
• ALMA observations of feeding and feedback in nearby Seyfert galaxies: an AGN-driven outflow in NGC 1433
• Nuclear star formation activity and black hole accretion in nearby Seyfert galaxies
• Molecular Gas in NUclei of GAlaxies (NUGA): IV. Gravitational Torques and AGN Feeding
• Mapping of the molecular gas inflow towards the Seyfert nucleus of NGC4051 using Gemini NIFS
• The Carnegie-Irvine Galaxy Survey. I. Overview and Atlas of Optical Images
• Dynamics of embedded bars and the connection with AGN. I. ISAAC/VLT stellar kinematics
• Feeding versus Feedback in NGC4151 probed with Gemini NIFS. II. Kinematics
• ALMA reveals the feeding of the Seyfert 1 nucleus in NGC 1566
• Fueling AGN II: Spatially Resolved Molecular Inflows and Outflows
• Gas Inflow in Barred Galaxies - Effects of Secondary Bars
• Breaking the law: the M_{bh}-M_{spheroid} mass relations for core-Sersic and Sersic galaxies
• Molecular Hydrogen and [FeII] in Active Galactic Nuclei
• Molecular Gas in NUclei of GAlaxies (NUGA) I.The counter-rotating LINER NGC4826
• Supermassive black holes and their host spheroids II. The red and blue sequence in the $M_{\mathrm{BH}}-M_{\ast ,\mathrm{sph}}$ diagram
• Dust and Nebular Emission. I. Models for Normal Galaxies
• A SINFONI view of Galaxy Centers: Morphology and Kinematics of five Nuclear Star Formation Rings
• A Near Infrared Spectroscopic Survey of LINER Galaxies
• N-band Imaging of Seyfert Nuclei and the MIR-X-ray correlation
• SINFONI adaptive optics integral field spectroscopy of the Circinus Galaxy
• Galaxy bulges and their massive black holes: a review
• Gas and stellar dynamics in NGC 1068. Probing the galactic gravitational potential
• A Connection between Star Formation in Nuclear Rings and their Host Galaxies
• The Gemini spectral library of near-IR late type stellar templates and its application for velocity dispersion measurements
• AGN-Starburst connection in NGC7582: Gemini near-infrared spectrograph integral field unit observations
• Molecular Hydrogen and [Fe II] in Active Galactic Nuclei III: LINERS and Star Forming Galaxies
• Kinematics and Excitation of the Molecular Hydrogen Accretion Disc in NGC 1275
• Molecular gas in the centre of nearby galaxies from VLT/SINFONI integral field spectroscopy - I. Morphology and mass inventory
• Warm and Cold Molecular Gas in Galaxies
• The [FeII]1.644micron emission in M82 and NGC253: Is it a measure of the supernova rate?
• Starburst-AGN mixing: II. Optically-selected active galaxies
• Compact molecular disc and ionized gas outflows within 350 pc of the active nucleus of Mrk 1066
• Probing the Physics of Narrow Line Regions in Active Galaxies II: The Siding Spring Southern Seyfert Spectroscopic Snapshot Survey (S7)
• Near-IR Spectra of Red Supergiants and Giants. I- Models with Solar and with Mixing-Induced Surface Abundance Ratios
• Mid-Infrared Imaging of Active Galaxies: Active Nuclei and Embedded Star Clusters
• Near-IR Integral Field Spectroscopy study of the Star Formation and AGN of the LIRG NGC 5135
• Gemini/GMOS IFU stellar kinematics of the nuclear region of six nearby active galaxies
• An Observational Guide to Identifying Pseudobulges and Classical Bulges in Disk Galaxies
• Molecular Hydrogen Excitation in Ultraluminous Infrared Galaxies
• Gas Dynamics and Outflow in the Barred Starburst Galaxy NGC 1808 Revealed with ALMA
• Supermassive Black Holes and Their Host Galaxies - II. The correlation with near-infrared luminosity revisited
• Molecular Hydrogen Excitation around Active Galactic Nuclei
• Understanding the two-dimensional ionization structure in luminous infrared galaxies. A near-IR integral field spectroscopy perspective
• Molecular Gas in NUclei of GAlaxies (NUGA): II. The Ringed LINER NGC7217
• Feeding Versus Feedback in AGN from Near-Infrared IFU Observations XI: NGC 2110
• Feeding Versus Feedback in NGC1068 probed with Gemini NIFS. I. Excitation
• The circumnuclear environment of NGC613: a nuclear starburst caught in the act?
• The feeding of activity in galaxies: a molecular line perspective
• Star Formation in Nuclear Rings of Barred Galaxies
• Ages and metallicities of circumnuclear star formation regions from Gemini IFU observations
• [FeII] as a tracer of Supernova Rate in Near-by Starburst Galaxies
• The nuclear gas disk of NGC 1566 dissected by SINFONI and ALMA
• Molecular gas in the centre of nearby galaxies from VLT/SINFONI integral field spectroscopy - II. Kinematics
• Modeling Tracers of Young Stellar Population Age in Star-Forming Galaxies
• On the morphology of sigma-drop galaxies
• Mrk 609: resolving the circum-nuclear structure with near-infrared integral field spectroscopy
• Is IRAS 01072+4954 a True-Seyfert 2? Hints from Near Infrared Integral Field Spectroscopy
• Differences between CO- and calcium triplet-derived velocity dispersions in spiral galaxies: evidence for central star formation?
• High Resolution IR Observations of the Starburst Ring in NGC 7552 -- One Ring to Rule Them All?
• Supermassive black holes and their host spheroids III. The $M_{BH}-n_{sph}$ correlation
• ALMA backed NIR high resolution integral field spectroscopy of the NUGA galaxy NGC 1433
• What produces the extended LINER-type emission in the NUGA galaxy NGC 5850?
• A low-luminosity type-1 QSO sample: II. Tracing circumnuclear star formation in HE 1029-1831 with SINFONI
• A low-luminosity type-1 QSO sample. V. Overluminous host spheroids and their excitation mechanisms
• Galaxy evolution across the optical emission-line diagnostic diagrams?
• Star clusters in a nuclear star-forming ring: The disappearing string of pearls
• A low-luminosity type-1 QSO sample: IV. Molecular gas contents and conditions of star formation in three nearby Seyfert galaxies

Cited by in corpus (21)

• ALMA observations of molecular tori around massive black holes
• The AGN Ionization Cones of NGC 5728 : I - Excitation and Nuclear Structure
• Keck OSIRIS AO LIRG Analysis: Feedback in the Nuclei of Luminous Infrared Galaxies
• Deciphering the imprint of AGN feedback in Seyfert galaxies: Nuclear-scale molecular gas deficits
• Near-infrared observations of star formation and gas flows in the NUGA galaxy NGC 1365
• ALMA Observations of Atomic Carbon [C I] (${{}^3\mathrm{P}}_1\to {{}^3\mathrm{P}}_0$) and Low-$J$ CO Lines in the Starburst Galaxy NGC 1808
• Black hole feeding and star formation in NGC 1808
• Dense molecular gas in the starburst nucleus of NGC 1808
• The spatially-resolved gas and dust connection in neutral inflows and outflows in nearby AGN
• A SINFONI view of the nuclear activity and circumnuclear star formation in NGC 4303 - II: Spatially resolved stellar populations
• Evolution of Molecular Clouds in the Superwind Galaxy NGC 1808 Probed by ALMA Observations
• Stellar kinematics in the nuclear regions of nearby LIRGs with VLT-SINFONI. Comparison with gas phases and implications for dynamical mass estimations
• Star formation and gas inflows in the OH Megamaser galaxy IRAS03056+2034
• Star formation in the centre of NGC 1808 as observed by ALMA
• A Spectral Analysis of the Centimeter Regime of Nearby Galaxies: RRLs, Excited OH, and NH${}_3$
• IC 630: Piercing the Veil of the Nuclear Gas
• Study of Central Intensity Ratio of Seyfert Galaxies in nearby Universe
• A 3D model for the stellar populations in the nuclei of NGC 1433,NGC 1566, and NGC 1808
• Multi-line Imaging of the Starburst Galaxy NGC 1808 with ALMA
• Infrared Spectroscopy of Nearby Radio Active Early-Type Galaxies -- II: Spectral Atlas
• Adaptive optics imaging of the nuclei of Seyfert 2 galaxies: An unexpectedly high incidence of nuclear stellar rings