Star Formation and Gas Accretion in Nearby Galaxies

Abstract

In order to quantify the relationship between gas accretion and star formation, we analyse a sample of 29 nearby galaxies from the WHISP survey which contains galaxies with and without evidence for recent gas accretion. We compare combined radial profiles of FUV (GALEX) and IR 24 μm (Spitzer) characterizing distributions of recent star formation with radial profiles of CO (IRAM, BIMA, or CARMA) and HI (WSRT) tracing molecular and atomic gas contents to examine star formation efficiencies in symmetric (quiescent), asymmetric (accreting), and interacting (tidally disturbed) galaxies. In addition, we investigate the relationship between star formation rate and HI in the outer discs for the three groups of galaxies. We confirm the general relationship between gas surface density and star formation surface density, but do not find a significant difference between the three groups of galaxies.

arXiv commentAccepted for publication in MNRAS, 18 pages, 9 figures, 1 table

References in corpus (52)

• Maps of Dust IR Emission for Use in Estimation of Reddening and CMBR Foregrounds
• The Global Schmidt Law in Star Forming Galaxies
• The Milky Way in Molecular Clouds: A New Complete CO Survey
• Star Formation in AEGIS Field Galaxies since z=1.1 : The Dominance of Gradually Declining Star Formation, and the Main Sequence of Star-Forming Galaxies
• The Star Formation Efficiency in Nearby Galaxies: Measuring Where Gas Forms Stars Effectively
• The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales
• Cold streams in early massive hot haloes as the main mode of galaxy formation
• UV Star Formation Rates in the Local Universe
• THINGS: The HI Nearby Galaxy Survey
• SINGS: The SIRTF Nearby Galaxies Survey
• The Calibration of Mid-Infrared Star Formation Rate Indicators
• HyperLEDA. III. The catalogue of extragalactic distances
• The GALEX Ultraviolet Atlas of Nearby Galaxies
• The Relationship Between Gas Content and Star Formation in Molecule-Rich Spiral Galaxies
• HERACLES: The HERA CO-Line Extragalactic Survey
• Cold gas accretion in galaxies
• Star Formation in NGC 5194 (M51a). II. The Spatially-Resolved Star Formation Law
• The BIMA Survey of Nearby Galaxies (BIMA SONG). II. The CO Data
• The UV-optical Galaxy Color-Magnitude Diagram I: Basic Properties
• Extremely Inefficient Star Formation in the Outer Disks of Nearby Galaxies
• A Search for Extended Ultraviolet Disk (XUV-disk) Galaxies in the Local Universe
• The Role of Cold Flows in the Assembly of Galaxy Disks
• The cold gaseous halo of NGC 891
• The galaxy stellar mass-star formation rate relation: Evidence for an evolving stellar initial mass function?
• The Westerbork HI Survey of Spiral and Irregular Galaxies I. HI Imaging of Late-type Dwarf Galaxies
• Recent Star Formation in the Extreme Outer Disk of M83
• Lopsided Spiral Galaxies and a Limit on the Galaxy Accretion Rate
• Star formation sustained by gas accretion
• The flat oxygen abundance gradient in the extended disk of M83
• Estimating the Star Formation Rate at 1 kpc Scales in Nearby Galaxies
• Distances to Galactic high-velocity clouds. I. Cohen Stream, complex GCP, cloud g1
• Converting From 3.6 and 4.5 Micron Fluxes to Stellar Mass
• Discovery of an extended ultraviolet disk in the nearby galaxy NGC4625
• The Westerbork HI Survey of spiral and irregular galaxies III: HI observations of early-type disk galaxies
• A Universal Neutral Gas Profile for Nearby Disk Galaxies
• Lopsided spiral galaxies: evidence for gas accretion
• The Age of the Solar Neighbourhood
• GHASP : An Halpha kinematic survey of 203 spiral and irregular galaxies - VII. Revisiting the analysis of Halpha data cubes for 97 galaxies
• Extended, regular HI structures around early-type galaxies
• CARMA Survey Toward Infrared-bright Nearby Galaxies (STING): Molecular Gas Star Formation Law in NGC4254
• Estimating gas accretion in disc galaxies using the Kennicutt-Schmidt law
• Lopsided galaxies: the case of NGC 891
• CARMA Survey Toward Infrared-bright Nearby Galaxies (STING). III. The Dependence of Atomic and Molecular Gas Surface Densities on Galaxy Properties
• HI Imaging Observations of Superthin Galaxies. II. IC2233 and the Blue Compact Dwarf NGC2537
• Lopsidedness in WHISP galaxies: II. Morphological lopsidedness
• Molecular Gas in NUclei of GAlaxies (NUGA): XII. The head-on collision in NGC1961
• Lopsidedness in WHISP galaxies: I. Rotation curves and kinematic lopsidedness
• On the Nature of the HII Regions in the Extended Ultraviolet Disc of NGC 4625
• Characterising uniform star formation efficiencies with marginally-stable galactic disks
• Disk Stability and Neutral Hydrogen as a Tracer of Dark Matter
• Equilibrium Star Formation In A Constant Q Disk: Model Optimisation and Initial Tests
• NGC 2782: a merger remnant with young stars in its gaseous tidal tail

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• The volumetric star formation law for nearby galaxies -- Extension to dwarf galaxies and low-density regions
• The Local Volume HI Survey: star formation properties
• The Metallicity Dependence of the HI Shielding Layers in Nearby Galaxies
• Volumetric Star Formation Prescriptions in Vertically Resolved Edge-on Galaxies
• Galaxies with Declining Rotation Curves
• An HI study of the collisional ring galaxy NGC 922
• Two-component gravitational instability in spiral galaxies
• A New Perspective on the Large-Scale Tidal Effect on the Galaxy Luminosity and Morphology
• Study of Star-Forming Regions in the Peculiar Galaxies NGC 660, NGC 1512, NGC 4395, and NGC 4618
• Revealing the Double Nucleus of NGC 4490
• The Volumetric Star Formation Law in the Almost Edge-on Galaxy NGC 4302 Revealed by ALMA