Chemical evolution along the circumnuclear ring of M83

Abstract

We report an astrochemical study on the evolution of interstellar molecular clouds and consequent star formation in the center of the barred spiral galaxy M83. We used the Atacama Large Millimeter/submillimeter Array (ALMA) to image molecular species indicative of shocks (SiO, CH${}_3$OH), dense cores (N${}_2$H${}^{+}$), and photodissociation regions (CN and CCH), as well as a radio recombination line (H41$\alpha$) tracing active star-forming regions. M83 has a circumnuclear gas ring that is joined at two areas by gas streams from the leading-edge gas lanes on the bar. We found elevated abundances of the shock and dense-core tracers in one of the orbit-intersecting areas, and found peaks of CN and H41$\alpha$ downstream. At the other orbit-intersection area, we found similar enhancement of the shock tracers, but less variation of other tracers, and no sign of active star formation in the stream. We propose that the observed chemical variation or lack of it is due to the presence or absence of collision-induced evolution of molecular clouds and induced star formation. This work presents the most clear case of the chemical evolution in the circumnuclear rings of barred galaxies, thanks to the ALMA resolution and sensitivity.

arXiv comment31 pages, 12 figures, accepted for publication in The Astrophysical Journal

References in corpus (67)

• Structure of Stationary Photodissociation Fronts
• Re-examining Larson's Scaling Relationships in Galactic Molecular Clouds
• The Spitzer Local Volume Legacy: Survey Description and Infrared Photometry
• Our astrochemical heritage
• Bar-driven Transport of Molecular Gas to Galactic Centers and Its Consequences
• The Influence of Bars on Nuclear Activity
• Are PAHs precursors of small hydrocarbons in Photo--Dissociation Regions? The Horsehead case
• The dynamical evolution of molecular clouds near the Galactic Centre - I. Orbital structure and evolutionary timeline
• Molecular Evolution in Collapsing Prestellar Cores
• SiO line emission from C-type shock waves : interstellar jets and outflows
• A 2 mm spectral line survey of the starburst galaxy NGC 253
• AINUR: Atlas of Images of NUclear Rings
• Spatially Resolved Chemistry in Nearby Galaxies I. The Center of IC 342
• ALMA Reveals the Molecular Medium Fueling the Nearest Nuclear Starburst
• The anatomy of the Orion B Giant Molecular Cloud: A local template for studies of nearby galaxies
• The Cepheid Distance to NGC 5236 (M 83) with the VLT
• Spectral imaging of the Central Molecular Zone in multiple 3-mm molecular lines
• Molecular clouds towards RCW 49 and Westerlund 2; Evidence for cluster formation triggered by cloud-cloud collision
• Molecular Clouds Toward the Super Star Cluster NGC3603; Possible Evidence for a Cloud-Cloud Collision in Triggering the Cluster Formation
• Molecular Excitation and Differential Gas-Phase Depletions in the IC 5146 Dark Cloud
• Tracing shocks and photodissociation in the Galactic center region
• Molecular Line Emission as a Tool for Galaxy Observations (LEGO). I. HCN as a tracer of moderate gas densities in molecular clouds and galaxies
• The frequency and nature of `cloud-cloud collisions' in galaxies
• ALMA Multi-line Imaging of the Nearby Starburst Galaxy NGC 253
• Cloud-cloud collision as a trigger of the high-mass star formation; a molecular line study in RCW120
• Spatial distribution of Galactic HII regions
• A SINFONI view of Galaxy Centers: Morphology and Kinematics of five Nuclear Star Formation Rings
• A Molecular Face-on View of the Galactic Centre Region
• Molecular clouds in the Trifid nebula M20; Possible evidence for a cloud-cloud collision in triggering the formation of the first generation stars
• A new look at the molecular gas in M42 and M43; possible evidence for cloud-cloud collision which triggered formation of the OB stars in the Orion Nebula Cluster
• Ethynyl (C2H) in massive star formation: Tracing the initial conditions?
• Lambda = 3 mm line survey of nearby active galaxies
• A Connection between Star Formation in Nuclear Rings and their Host Galaxies
• Dense Molecular Gas Associated with the Circumnuclear Star Forming Ring in the Barred Spiral Galaxy NGC 6951
• A lambda = 1.3 mm and 2 mm molecular line survey towards M82
• Young Clusters in the Nuclear Starburst of M 83
• Molecular gas in the galaxy M83. I - The molecular gas distribution
• Multi-molecule ALMA observations towards the Seyfert 1 galaxy NGC 1097
• A lambda=3 mm molecular line survey of NGC1068. Chemical signatures of an AGN environment
• Electron Excitation of High Dipole Moment Molecules Reexamined
• ALMA observations of 99 GHz free-free and H40$\alpha$ line emission from star formation in the centre of NGC 253
• Physical properties of the circumnuclear starburst ring in the barred Galaxy NGC 1097
• Molecular Gas in NUclei of GAlaxies (NUGA): VI. Detection of a molecular gas disk/torus via HCN in the Seyfert2 galaxy NGC6951?
• Photodissociation chemistry footprints in the Starburst galaxy NGC 253
• Distributions of molecules in the circumnuclear disk and surrounding starburst ring in the Seyfert galaxy NGC 1068 observed with ALMA
• A survey of the Galactic center region in HCO+, H13CO+ and SiO
• Molecular gas in the galaxy M83. II - Kinematics of the molecular gas
• Molecular Gas around the Double Nucleus in M83
• ALMA Astrochemical Observations of the Infrared-Luminous Merger NGC 3256
• Star Formation in Nuclear Rings of Barred Galaxies
• Cloud-cloud Collision in the Galactic Center 50 km s${}^{-1}$ Molecular Cloud
• Molecular shock tracers in NGC 1068: SiO and HNCO
• Molecular-Cloud-Scale Chemical Composition I: Mapping Spectral Line Survey toward W51 in the 3 mm Band
• ALMA ${}^{12}$CO (J=1--0) imaging of the nearby galaxy M83: Variations in the efficiency of star formation in giant molecular clouds
• Wide-field 12CO (J = 1-0) Imaging of the Nearby Barred Galaxy M83 with NMA and Nobeyema 45-m telescope: Molecular Gas Kinematics and Star Formation Along the Bar
• The central region of M83: Massive star formation, kinematics, and the location and origin of the nucleus
• A Multi-Transition Study of Molecules toward NGC 1068 based on High-Resolution Imaging Observations with ALMA
• Methanol detection in M82
• Origins of Scatter in the Relationship Between HCN 1-0 and Dense Gas Mass in the Galactic Center
• A molecular line survey toward the nearby galaxies NGC 1068, NGC 253, and IC 342 at 3 mm with the Nobeyama 45 m radio telescope: The data
• A Molecular Line Survey toward the Nearby Galaxies NGC 1068, NGC 253, and IC 342 at 3 mm with the Nobeyama 45-m Radio Telescope: Impact of an AGN on 1 kpc Scale Molecular Abundances
• The detectability of mm-wave molecular rotational transitions
• Molecular Gas Properties in M83 from CO PDFs
• The Central Region of M83
• Molecular-Cloud-Scale Chemical Composition III: Constraints of Average Physical Properties through Chemical Models
• Formation of Dense Molecular Gas and Stars at the Circumnuclear Starburst Ring in the Barred Galaxy NGC 7552
• Chemistry in isolation: High CCH/HCO+ line ratio in the AMIGA galaxy CIG 638

Cited by in corpus (10)

• ALCHEMI: an ALMA Comprehensive High-resolution Extragalactic Molecular Inventory. Survey presentation and first results from the ACA array
• Starburst Energy Feedback Seen Through HCO${}^{+}$/HOC${}^{+}$ Emission in NGC 253 from ALCHEMI
• Methanol masers in NGC 253 with ALCHEMI
• Star Formation in Nuclear Rings with the TIGRESS Framework
• Diverse Molecular Structures Across The Whole Star-Forming Disk of M83: High fidelity Imaging at 40pc Resolution
• ALCHEMI finds a "shocking" carbon footprint in the starburst galaxy NGC~253
• Reconstructing the shock history in the CMZ of NGC 253 with ALCHEMI
• Living on the edge of the Central Molecular Zone: G1.3 is the more likely candidate for gas accretion into the CMZ
• A nearly constant CN/HCN line ratio in nearby galaxies: CN as a new tracer of dense gas
• A 260 pc resolution ALMA map of HCN(1-0) in the galaxy NGC 4321