Star formation and gas inflows in the OH Megamaser galaxy IRAS03056+2034

Abstract

We have obtained observations of the OH Megamaser galaxy IRAS03056+0234 using Gemini Multi-Object Spectrograph (GMOS) Integral Field Unit (IFU), Very Large Array (VLA) and Hubble Space Telescope (HST). The HST data reveals spiral arms containing knots of emission associated to star forming regions. The GMOS-IFU data cover the spectral range of 4500 to 7500 Å at a velocity resolution of 90 km s${}^{-1}$ and spatial resolution of 506 pc. The emission-line flux distributions reveal a ring of star forming regions with radius of 786 pc centred at the nucleus of the galaxy, with an ionized gas mass of 1.2$\times$ 10${}^8$M${}_{\odot }$, an ionizing photon luminosity of log Q[H${}^{+}$]=53.8 and a star formation rate of 4.9 M${}_{\odot }$ yr${}^{-1}$. The emission-line ratios and radio emission suggest that the gas at the nuclear region is excited by both starburst activity and an active galactic nucleus. The gas velocity fields are partially reproduced by rotation in the galactic plane, but show, in addition, excess redshifts to the east of the nucleus, consistent with gas inflows towards the nucleus, with velocity of $\sim$45 km s${}^{-1}$ and a mass inflow rate of $\sim$7.7$\times$10${}^{-3}$ M${}_{\odot }$ yr${}^{-1}$.

arXiv commentTo be published in MNRAS

References in corpus (42)

• Star Formation in Galaxies Along the Hubble Sequence
• The Host Galaxies of AGN
• Theoretical Modeling of Starburst Galaxies
• The Host Galaxies and Classification of Active Galactic Nuclei
• Cosmic-Ray Rejection by Laplacian Edge Detection
• Fueling Low-Level AGN Activity Through the Stochastic Accretion of Cold Gas
• Kinematics of the Local Universe XIII. 21-cm line measurements of 452 galaxies with the Nançay radiotelescope, JHK Tully-Fisher relation and preliminary maps of the peculiar velocity field
• The Role of Starburst-AGN composites in Luminous Infrared Galaxy Mergers: Insights from the New Optical Classification Scheme
• Mapping of the molecular gas inflow towards the Seyfert nucleus of NGC4051 using Gemini NIFS
• Molecular gas streamers feeding and obscuring the active nucleus of NGC1068
• Dense gas in luminous infrared galaxies
• Diffuse Ionized Gas in Edge-on Spiral Galaxies: Extraplanar and Outer Disk H-alpha Emission
• VLBA Imaging of Central Engines in Radio Quiet Quasars
• Nuclear spirals as feeding channels to the Supermassive Black Hole: the case of the galaxy NGC 6951
• Feeding Versus Feedback in AGNs from Near-Infrared IFU Observations: The Case of Mrk79
• An H-alpha survey aiming at the detection of extraplanar diffuse ionized gas in halos of edge-on spiral galaxies II. The H-alpha survey atlas and catalog
• AGN-Starburst connection in NGC7582: Gemini near-infrared spectrograph integral field unit observations
• Radio-emitting narrow-line Seyfert 1 galaxies in the JVLA perspective
• The metal abundance of circumnuclear star forming regions in early type spirals. Spectrophotometric observations
• The Global Star Formation Laws of Galaxies from a Radio Continuum Perspective
• Kinematic analysis of nuclear spirals: feeding the black hole in NGC1097
• The complex gas kinematics in the nucleus of the Seyfert 2 galaxy NGC 1386: rotation, outflows and inflows
• Gas Streaming Motions towards the Nucleus of M81
• The OH Megamaser Luminosity Function
• Outflows in the Narrow Line Region of Bright Seyfert Galaxies - I: GMOS-IFU Data
• PROFIT: a new alternative for emission-line PROfile FITting
• A Search for OH Megamasers at z > 0.1. I. Preliminary Results
• Ages and metallicities of circumnuclear star formation regions from Gemini IFU observations
• ALMA follows streaming of dense gas down to 40 pc from the supermassive black hole in NGC1097
• Nuclear embedded star clusters in NGC 7582
• A SINFONI view of the nuclear activity and circum-nuclear star formation in NGC 4303
• Star formation and gas flows in the centre of the NUGA galaxy NGC 1808 observed with SINFONI
• An embedded active nucleus in the OH megamaser galaxy IRAS16399-0937
• Spitzer IRS Spectral Mapping of the Toomre Sequence: Spatial Variations of PAH, Gas, and Dust Properties in Nearby Major Mergers
• Circumnuclear star formation in Mrk 42 mapped with Gemini Near-infrared Integral Field Spectrograph
• Gas inflows towards the nucleus of the Seyfert 2 galaxy NGC1667
• Gemini IFU, VLA and HST observations of the OH Megamaser galaxy IRASF23199+0123: the hidden monster and its outflow
• Embedded clusters in NGC1808 central starburst - Near-infrared imaging and spectroscopy
• Quantifying systematics from the shear inversion on weak-lensing peak counts
• The VIRUS-P Exploration of Nearby Galaxies (VENGA): Radial Gas Inflow and Shock Excitation in NGC 1042
• Reduction of Integral Field Spectroscopic Data from the Gemini Multi-Object Spectrograph (a commented example)
• The Fundamental Manifold of spiral galaxies: ordered versus random motions and the morphology dependence of the Tully-Fisher relation

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