Cloud-Scale Molecular Gas Properties in 15 Nearby Galaxies

Abstract

We measure the velocity dispersion, $\sigma$, and surface density, $\Sigma$, of the molecular gas in nearby galaxies from CO spectral line cubes with spatial resolution $45$-$120$ pc, matched to the size of individual giant molecular clouds. Combining $11$ galaxies from the PHANGS-ALMA survey with $4$ targets from the literature, we characterize $\sim 30,000$ independent sightlines where CO is detected at good significance. $\Sigma$ and $\sigma$ show a strong positive correlation, with the best-fit power law slope close to the expected value for resolved, self-gravitating clouds. This indicates only weak variation in the virial parameter ${\alpha }_{\mathrm{vir}}\propto {\sigma }^2/\Sigma$, which is $\sim 1.5$-$3.0$ for most galaxies. We do, however, observe enormous variation in the internal turbulent pressure $P_{\mathrm{turb}}\propto \Sigma {\sigma }^2$, which spans $\sim 5\mathrm{dex}$ across our sample. We find $\Sigma$, $\sigma$, and $P_{\mathrm{turb}}$ to be systematically larger in more massive galaxies. The same quantities appear enhanced in the central kpc of strongly barred galaxies relative to their disks. Based on sensitive maps of M31 and M33, the slope of the $\sigma$-$\Sigma$ relation flattens at $\Sigma \lesssim 10{\mathrm{M}}_{\odot }\mathrm{p}{\mathrm{c}}^{-2}$, leading to high $\sigma$ for a given $\Sigma$ and high apparent ${\alpha }_{\mathrm{vir}}$. This echoes results found in the Milky Way, and likely originates from a combination of lower beam filling factors and a stronger influence of local environment on the dynamical state of molecular gas in the low density regime.

arXiv commentAccepted for publication in ApJ. 45 pages, 11 figures, 8 tables, 4 Appendices; key results summarized in Figure 10. Machine-readable table can be downloaded at http://www.astronomy.ohio-state.edu/~sun.1608/datafile3.txt prior to publication. For a brief video describing the main results of this paper, please see https://www.youtube.com/watch?v=-_eL7t1PVq8&t

References in corpus (112)

• Astropy: A Community Python Package for Astronomy
• emcee: The MCMC Hammer
• The CO-to-H2 Conversion Factor
• The Star Formation Efficiency in Nearby Galaxies: Measuring Where Gas Forms Stars Effectively
• The Star Formation Law in Nearby Galaxies on Sub-Kpc Scales
• Secular Evolution and the Formation of Pseudobulges in Disk Galaxies
• The Neutral Atomic Phases of the ISM in the Galaxy
• A General Theory of Turbulence-Regulated Star Formation, From Spirals to ULIRGs
• High-Resolution Rotation Curves and Galaxy Mass Models from THINGS
• HyperLEDA. III. The catalogue of extragalactic distances
• The Star Formation Rate of Turbulent Magnetized Clouds: Comparing Theory, Simulations, and Observations
• The Relationship Between Gas Content and Star Formation in Molecule-Rich Spiral Galaxies
• Molecular Gas and Star Formation in Nearby Disk Galaxies
• Re-examining Larson's Scaling Relationships in Galactic Molecular Clouds
• The Role of Pressure in GMC Formation II: The H_2 - Pressure Relation
• The CO-to-H2 Conversion Factor and Dust-to-Gas Ratio on Kiloparsec Scales in Nearby Galaxies
• A Molecular Star Formation Law in the Atomic Gas Dominated Regime in Nearby Galaxies
• A Universal, Local Star Formation Law in Galactic Clouds, Nearby Galaxies, High-Redshift Disks, and Starbursts
• The Resolved Properties of Extragalactic Giant Molecular Clouds
• xCOLD GASS: the complete IRAM-30m legacy survey of molecular gas for galaxy evolution studies
• The Spitzer Survey of Stellar Structure in Galaxies (S^4G)
• The Star Formation Rate of Supersonic MHD Turbulence
• On the fraction of star formation occurring in bound stellar clusters
• Regulation of Star Formation Rates in Multiphase Galactic Disks: a Thermal/Dynamical Equilibrium Model
• COLD GASS, an IRAM Legacy Survey of Molecular Gas in Massive Galaxies: II. The non-universality of the Molecular Gas Depletion Timescale
• Physical properties of molecular clouds for the entire Milky Way disk
• A General Model for the CO-H2 Conversion Factor in Galaxies with Applications to the Star Formation Law
• Bar-driven Transport of Molecular Gas to Galactic Centers and Its Consequences
• Maximally Star-Forming Galactic Disks I. Starburst Regulation Via Feedback-Driven Turbulence
• Bias-free Measurement of Giant Molecular Cloud Properties
• Feedback, Disk Self-regulation and Galaxy Formation
• The Equilibrium State of Molecular Regions in the Outer Galaxy
• What controls star formation in the central 500 pc of the Galaxy?
• The BIMA Survey of Nearby Galaxies (BIMA SONG): I. The Radial Distribution of CO Emission in Spiral Galaxies
• The Magellanic Mopra Assessment (MAGMA). I. The Molecular Cloud Population of the Large Magellanic Cloud
• The PdBI Arcsecond Whirlpool Survey (PAWS): Environmental Dependence of Giant Molecular Cloud Properties in M51
• The Central Region of Barred Galaxies: Molecular Environment, Starbursts, and Secular Evolution
• The Spitzer Survey of Stellar Structure in Galaxies (S${}^4$G): Precise Stellar Mass Distributions from Automated Dust Correction at 3.6 microns
• Gravity or Turbulence? The velocity dispersion-size relation
• The PdBI Arcsecond Whirlpool Survey (PAWS). I. A Cloud-Scale/Multi-Wavelength View of the Interstellar Medium in a Grand-Design Spiral Galaxy
• Giant Molecular Clouds in M33 - I. BIMA All Disk Survey
• Dark matter and visible baryons in M33
• The Role of Pressure in GMC Formation
• ALMA Reveals the Molecular Medium Fueling the Nearest Nuclear Starburst
• CO-dark gas and molecular filaments in Milky Way type galaxies
• Three Dimensional Hydrodynamic Simulations of Multiphase Galactic Disks with Star Formation Feedback: I. Regulation of Star Formation Rates
• A Comparative Study of Giant Molecular Clouds in M51, M33 and the Large Magellanic Cloud
• Gas Kinematics on GMC scales in M51 with PAWS: cloud stabilization through dynamical pressure
• The Plateau de Bure + 30m Arcsecond Whirlpool Survey reveals a thick disk of diffuse molecular gas in the M51 galaxy
• A wide-field HI mosaic of Messier 31. II.The disk warp, rotation and the dark matter halo
• Dynamically Driven Evolution of the Interstellar Medium in M51
• Molecular gas in the Andromeda galaxy
• Regulation of Star Formation Rates in Multiphase Galactic Disks: Numerical Tests of the Thermal/Dynamical Equilibrium Model
• Molecular and Atomic Gas in the Local Group Galaxy M33
• Resolved spectroscopy of gravitationally lensed galaxies: global dynamics and star-forming clumps on ~100pc scales
• A Wide-field High Resolution HI Mosaic of Messier 31: I. Opaque Atomic Gas and Star Formation Rate Density
• Cloud Scale ISM Structure and Star Formation in M51
• Dusty waves on a starry sea: the mid-infrared view of M31
• Molecular Gas and Star Formation in Bars of Nearby Spiral Galaxies
• A Dynamical Model for the Formation of Gas Rings and Episodic Starbursts Near Galactic Centres
• Comparing molecular gas across cosmic time-scales: the Milky Way as both a typical spiral galaxy and a high-redshift galaxy analogue
• Cosmological evolution of atomic gas and implications for 21 cm HI absorption
• The linewidth-size relationship in the dense ISM of the Central Molecular Zone
• The Perils of Clumpfind: The Mass Spectrum of Sub-structures in Molecular Clouds
• The Panchromatic Hubble Andromeda Treasury XI: The Spatially-Resolved Recent Star Formation History of M31
• High Resolution Molecular Gas Maps of M33
• Giant Molecular Clouds in M64
• Vertical Equilibrium, Energetics, and Star Formation Rates in Magnetized Galactic Disks Regulated by Momentum Feedback from Supernovae
• Analytical theory for the initial mass function: III time dependence and star formation rate
• A Portrait of Cold Gas in Galaxies at 60pc Resolution and a Simple Method to Test Hypotheses That Link Small-Scale ISM Structure to Galaxy-Scale Processes
• ALMA Observations of the Antennae Galaxies: I. A New Window on a Prototypical Merger
• Giant Molecular Clouds in M31: I - Molecular Cloud Properties
• A Multi-Transistion CO Study of the "Antennae" Galaxies NGC4038/9
• The Mass Function of Super Giant Molecular Complexes and Implications for Forming Young Massive Star Clusters in the Antennae (NGC 4038/39)
• A Model for the Onset of Self-gravitation and Star Formation in Molecular Gas Governed by Galactic Forces: I. Cloud-scale Gas Motions
• Resolved Giant Molecular Clouds in Nearby Spiral Galaxies: Insights from the CANON CO (1-0) Survey
• The PdBI Arcsecond Whirlpool Survey (PAWS): Multi-phase cold gas kinematic of M51
• Physical Properties of Molecular Clouds at 2 parsec Resolution in the Low-Metallicity Dwarf Galaxy NGC 6822 and the Milky Way
• Gravitational contraction versus Supernova driving and the origin of the velocity dispersion-size relation in molecular clouds
• Probability Distribution Functions OF 12CO(J = 1-0) Brightness and Integrated Intensity in M51: The PAWS View
• Supernova Driving. IV. The Star Formation Rate of Molecular Clouds
• WISDOM Project - II: Molecular gas measurement of the supermassive black hole mass in NGC4697
• The Physical Conditions in a Pre Super Star Cluster Molecular Cloud in the Antennae Galaxies
• Pressure Relations and Vertical Equilibrium in the Turbulent, Multiphase ISM
• A general theory for the lifetimes of giant molecular clouds under the influence of galactic dynamics
• CI and CO in nearby galaxy centers: the bright galaxies NGC1068 (M77), NGC2146, NGC3079, NGC4826 (M64), and NGC7469
• H-alpha Kinematics of the SINGS Nearby Galaxies Survey. II
• The mid-life crisis of the Milky Way and M31
• Giant Molecular Clouds in the Early-Type Galaxy NGC4526
• What can simulated molecular clouds tell us about real molecular clouds?
• Two Populations of Molecular Clouds in the Antennae Galaxies
• The Varying Mass Distribution of Molecular Clouds Across M83
• The X_CO conversion factor from galactic multiphase ISM simulations
• THOR - The HI, OH, Recombination Line Survey of the Milky Way - The pilot study: HI observations of the giant molecular cloud W43
• WISDOM Project - III: Molecular gas measurement of the supermassive black hole mass in the barred lenticular galaxy NGC4429
• Towards the Secondary Bar: Gas Morphology and Dynamics in NGC 4303
• Unveiling the physical properties and kinematics of molecular gas in the Antennae Galaxies (NGC 4038/9) through high resolution CO (J = 3-2) observations
• Thermal Pressure in the Cold Neutral Medium of Nearby Galaxies
• The JCMT Nearby Galaxies Legacy Survey IV. Velocity Dispersions in the Molecular Interstellar Medium in Spiral Galaxies
• Evolution of Structure in Late-type Spiral Galaxies I: Ionized Gas Kinematics in NGC 628
• Gravitational torques imply molecular gas inflow towards the nucleus of M51
• The VIRUS-P Exploration of Nearby Galaxies (VENGA): The Xco Gradient in NGC 628
• Energy budget of forming clumps in numerical simulations of collapsing clouds
• Molecular Gas Velocity Dispersions in the Andromeda Galaxy
• Dense Gas Fraction and Star Formation Efficiency Variations in the Antennae Galaxies
• ALMA CO and VLT/SINFONI H2 observations of the Antennae overlap region: mass and energy dissipation
• The interstellar medium of the Antennae Galaxies
• What is a GMC? Are Observers and Simulators Discussing the Same Star-forming Clouds?
• How galactic environment regulates star formation
• The molecular gas mass of M33
• Molecular Gas Properties in M83 from CO PDFs
• Structured Molecular Gas Reveals Galactic Spiral Arms

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