The Bolocam Galactic Plane Survey. XIV. Physical Properties of Massive Starless and Star Forming Clumps

Abstract

We sort $4683$ molecular clouds between $10^{\circ }<\ell <65^{\circ }$ from the Bolocam Galactic Plane Survey based on observational diagnostics of star formation activity: compact $70$ $\mu \mathrm{m}$ sources, mid-IR color-selected YSOs, ${\mathrm{H}}_2\mathrm{O}$ and $\mathrm{C}{\mathrm{H}}_3\mathrm{OH}$ masers, and UCHII regions. We also present a combined $\mathrm{N}{\mathrm{H}}_3$-derived gas kinetic temperature and ${\mathrm{H}}_2\mathrm{O}$ maser catalog for $1788$ clumps from our own GBT 100m observations and from the literature. We identify a subsample of $2223$ ($47.5\%$) starless clump candidates, the largest and most robust sample identified from a blind survey to date. Distributions of flux density, flux concentration, solid angle, kinetic temperature, column density, radius, and mass show strong ($>1$ dex) progressions when sorted by star formation indicator. The median starless clump candidate is marginally sub-virial ($\alpha \sim 0.7$) with $>75\%$ of clumps with known distance being gravitationally bound ($\alpha <2$). These samples show a statistically significant increase in the median clump mass of $\Delta M\sim 170-370$ M${}_{\odot }$ from the starless candidates to clumps associated with protostars. This trend could be due to (i) mass growth of the clumps at $\dot{M}\sim 200-440$ Msun Myr${}^{-1}$ for an average free-fall $0.8$ Myr time-scale, (ii) a systematic factor of two increase in dust opacity from starless to protostellar phases, (iii) and/or a variation in the ratio of starless to protostellar clump lifetime that scales as $\sim M^{-0.4}$. By comparing to the observed number of $\mathrm{C}{\mathrm{H}}_3\mathrm{OH}$ maser containing clumps we estimate the phase-lifetime of massive ($M>10^3$ M${}_{\odot }$) starless clumps to be $0.37\pm 0.08\mathrm{Myr}(M/10^3{\mathrm{M}}_{\odot }{)}^{-1}$; the majority ($M<450$ M${}_{\odot }$) have phase-lifetimes longer than their average free-fall time.

arXiv commentAccepted for publication in ApJ; 33 pages; 22 figures; 7 tables

References in corpus (109)

• On the variation of the Initial Mass Function
• Embedded Clusters in Molecular Clouds
• Theory of Star Formation
• Trigonometric Parallaxes of High Mass Star Forming Regions: the Structure and Kinematics of the Milky Way
• GLIMPSE: I. A SIRTF Legacy Project to Map the Inner Galaxy
• The Neutral Atomic Phases of the ISM in the Galaxy
• The Formation of Massive Stars from Turbulent Cores
• Interpreting Spectral Energy Distributions from Young Stellar Objects. II. Fitting observed SEDs using a large grid of pre-computed models
• Interpreting Spectral Energy Distributions from Young Stellar Objects. I. A grid of 200,000 YSO model SEDs
• On the Star Formation Rates in Molecular Clouds
• ATLASGAL - The APEX Telescope Large Area Survey of the Galaxy at 870 microns
• Re-examining Larson's Scaling Relationships in Galactic Molecular Clouds
• The Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey
• Hi-GAL: the Herschel infrared Galactic Plane Survey
• Competitive accretion in embedded stellar cluster
• Herschel view of the Taurus B211/3 filament and striations: Evidence of filamentary growth?
• High-Mass Proto-Stellar Candidates - II : Density structure from dust continuum and CS emission
• The Critical Density and the Effective Excitation Density of Commonly Observed Molecular Dense Gas Tracers
• The Star Formation Rate and Gas Surface Density Relation in the Milky Way: Implications for Extragalactic Studies
• A Catalog of Extended Green Objects (EGOs) in the GLIMPSE Survey: A new sample of massive young stellar object outflow candidates
• Radiation-Hydrodynamic Simulations of Collapse and Fragmentation in Massive Protostellar Cores
• Chemo-spectrophotometric evolution of spiral galaxies: I. The model and the Milky Way
• Global collapse of molecular clouds as a formation mechanism for the most massive stars
• Dynamic star formation in the massive DR21 filament
• Physical Properties and Galactic Distribution of Molecular Clouds identified in the Galactic Ring Survey
• Toward a Unification of Star Formation Rate Determinations in the Milky Way and Other Galaxies
• The initial conditions of stellar protocluster formation. I. A catalogue of Spitzer dark clouds
• A Minimum Column Density of 1 g cm^-2 for Massive Star Formation
• The Physical Conditions for Massive Star Formation: Dust Continuum Maps and Modeling
• Filamentary Accretion Flows in the Embedded Serpens South Protocluster
• Low Virial Parameters in Molecular Clouds: Implications for High Mass Star Formation and Magnetic Fields
• The Bolocam Galactic Plane Survey: Survey Description and Data Reduction
• The Red MSX Source Survey: the Massive Young Stellar Population of our Galaxy
• ATLASGAL - Compact source catalogue: 330 < l < 21 degrees
• Circumventing the radiation pressure barrier in the formation of massive stars via disk accretion
• How Many Infrared Dark Clouds can form Massive Stars and Clusters?
• The Bolocam Galactic Plane Survey -- II. Catalog of the Image Data
• Kinematic Distances to Molecular Clouds identified in the Galactic Ring Survey
• ATLASGAL --- towards a complete sample of massive star forming clumps
• Intrinsically Red Sources observed by Spitzer in the Galactic Mid-Plane
• The ATLASGAL survey: a catalog of dust condensations in the Galactic plane
• Ammonia from cold high-mass clumps discovered in the inner Galactic disk by the ATLASGAL survey
• An Ammonia Spectral Atlas of Dense Cores in Perseus
• Magnetic Fields in High-Mass Infrared Dark Clouds
• A general catalogue of 6.7 GHz methanol masers. I: data
• A CS J=5-4 Mapping Survey Towards High-mass Star Forming Cores Associated with Water Masers
• The initial conditions of star formation in the Ophiuchus main cloud: Kinematics of the protocluster condensations
• Direct Numerical Simulation of Radiation Pressure-Driven Turbulence and Winds in Star Clusters and Galactic Disks
• The H_2O southern Galactic Plane Survey (HOPS): I. Techniques and H_2O maser data
• Fragmentation and mass segregation in the massive dense cores of Cygnus X
• The Simultaneous Formation of Massive Stars and Stellar Clusters
• The RMS Survey: Ammonia and water maser analysis of massive star forming regions
• The Co-ordinated Radio and Infrared Survey for High Mass Star Formation (The CORNISH Survey) - I. Survey Design
• The Co-ordinated Radio and Infrared Survey for High-Mass Star Formation - II. Source Catalogue
• Characterizing Precursors to Stellar Clusters with Herschel
• The earliest phases of star formation - A Herschel key project. The thermal structure of low-mass molecular cloud cores
• ATLASGAL --- Environments of 6.7\,GHz methanol masers
• The Population of the Galactic Plane as Seen by MSX
• The RMS Survey: Critical Tests of Accretion Models for the Formation of Massive Stars
• Source extraction and photometry for the far-infrared and sub-millimeter continuum in the presence of complex backgrounds
• ATLASGAL --- properties of compact HII regions and their natal clumps
• The Bolocam Galactic Plane Survey IX: Data Release 2 and Outer Galaxy Extension
• The JCMT Gould Belt Survey: First results from the SCUBA-2 observations of the Ophiuchus molecular cloud and a virial analysis of its prestellar core population
• The dynamical properties of dense filaments in the infrared dark cloud G035.39-00.33
• The data reduction pipeline for the Hi-GAL survey
• High- and Low-Mass Star Forming Regions from Hierarchical Gravitational Fragmentation. High local Star Formation Rates with Low Global Efficiencies
• Confirmation of the exclusive association between 6.7-GHz methanol masers and high-mass star formation regions
• The Bolocam Galactic Plane Survey. VII. Characterizing the Properties of Massive Star-Forming Regions
• The Spitzer c2d Survey of Large, Nearby, Interstellar Clouds: VI. Perseus Observed with MIPS
• A 24 Micron Point Source Catalog of the Galactic Plane from Spitzer/MIPSGAL
• CO outflows from high-mass Class 0 protostars in Cygnus-X
• Far-Infrared Dust Temperatures and Column Densities of the MALT90 Molecular Clump Sample
• CARMA Large Area Star Formation Survey: Observational Analysis of Filaments in the Serpens South Molecular Cloud
• Probing Pre-Protosellar Cores with Formaldehyde
• ATLASGAL - Kinematic distances and the dense gas mass distribution of the inner Galaxy
• An Infrared through Radio Study of the Properties and Evolution of IRDC Clumps
• Modeling the Physical Structure of the Low Density Pre-protostellar Core Lynds 1498
• Chemical Evolution in High-Mass Star-Forming Regions: Results from the MALT90 Survey
• The Arecibo Methanol Maser Galactic Plane Survey--I: Data
• Observational Constraints on Submillimeter Dust Opacity
• Accuracy of core mass estimates in simulated observations of dust emission
• Interstellar H${}_2$O Masers from J Shocks
• There are no starless massive proto-clusters in the first quadrant of the Galaxy
• Search for starless clumps in the ATLASGAL survey
• The Bolocam Galactic Plane Survey V: HCO+ and N2H+ Spectroscopy of 1.1 mm Dust Continuum Sources
• Accurate water maser positions from HOPS
• Herschel Observations of the W43 "mini-starburst"
• How to Find Young Massive Cluster Progenitors
• Stellar clusters in the inner Galaxy and their correlation with cold dust emission
• The Bolocam Galactic Plane Survey -- III. Characterizing Physical Properties of Massive Star-Forming Regions in the Gemini OB1 Molecular Cloud
• The Bolocam Galactic Plane Survey. X. A Complete Spectroscopic Catalog of Dense Molecular Gas Observed toward 1.1 mm Dust Continuum Sources with 7.5 <= l <= 194 degrees
• The Bolocam Galactic Plane Survey. VIII. A Mid-Infrared Kinematic Distance Discrimination Method
• The effect of a strong external radiation field on protostellar envelopes in Orion
• Kinematic structure of massive star-forming regions - I. Accretion along filaments
• The almost ubiquitous association of 6.7 GHz methanol masers with dust
• The Bolocam Galactic Plane Survey. XII. Distance Catalog Expansion Using Kinematic Isolation of Dense Molecular Cloud Structures With 13CO(1-0)
• The Arecibo Methanol Maser Galactic Plane Survey-IV: Accurate Astrometry and Source Morphologies
• A Mid-Infrared Census of Star Formation Activity in Bolocam Galactic Plane Survey Sources
• 12.2-GHz methanol maser MMB follow-up catalogue - I. Longitude range 330 to 10 degrees
• 12.2-GHz methanol maser MMB follow-up catalogue - II. Longitude range 186 to 330 degrees
• The relation between accretion rates and the initial mass function in hydrodynamical simulations of star formation
• The Comparison of Physical Properties Derived from Gas and Dust in a Massive Star-Forming Region
• APEX/SABOCA observations of small-scale structure of infrared-dark clouds I. Early evolutionary stages of star-forming cores
• On the internal structure of starless cores. I. Physical conditions and the distribution of CO, CS, N2H+, and NH3 in L1498 and L1517B
• Hyper: Hybrid Photometry and Extraction Routine
• 12.2-GHz methanol maser MMB follow-up catalogue - III. Longitude range 10 to 20 degrees
• The Bolocam Galactic Plane Survey. XIII. Physical Properties and Mass Functions of Dense Molecular Cloud Structures
• Isolated starless cores in IRDCs in the Hi-GAL survey
• Star Formation in Massive Clusters via Bondi Accretion

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• Properties of Hi-GAL clumps in the inner Galaxy]{The Hi-GAL compact source catalogue. I. The physical properties of the clumps in the inner Galaxy ($-71.0^{\circ }<\ell <67.0^{\circ }$)
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• The earliest phases of high-mass star formation, as seen in NGC 6334 by \emph{Herschel}
• ALMA survey of massive cluster progenitors from ATLASGAL. Limited fragmentation at the early evolutionary stage of massive clumps
• Testing Larson's relationships in massive clumps
• ALMA observations of fragmentation, sub-structure, and protostars in high-mass starless clump candidates
• A Hunt for Massive Starless Cores
• The JCMT Plane Survey: First complete data release - emission maps and compact source catalogue
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• Star Formation Occurs in Dense Gas, but What Does "Dense" Mean?
• Massive 70 micron quiet clumps I: evidence of embedded low/intermediate-mass star formation activity
• High-mass Starless Clumps in the inner Galactic Plane: the Sample and Dust Properties
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• Looking deep into the Rosette Nebula's heart: the (sub)stellar content of the massive young cluster NGC 2244
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• KFPA Examinations of Young STellar Object Natal Environments (KEYSTONE): Hierarchical Ammonia Structures in Galactic Giant Molecular Clouds
• Multi-scale dynamics in star-forming regions: the interplay between gravity and turbulence
• The SQUALO project (Star formation in QUiescent And Luminous Objects) I: clump-fed accretion mechanism in high-mass star-forming objects
• Dust spectrum and polarisation at 850 um in the massive IRDC G035.39-00.33
• The Lifetimes of Phases in High-Mass Star-Forming Regions
• Upper Mass-Loss Limits and Clumping in the Intermediate and Outer Wind Regions of OB stars
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• Thermal balance and comparison of gas and dust properties of dense clumps in the Hi-GAL survey
• Design and performance of dual-polarization lumped-element kinetic inductance detectors for millimeter-wave polarimetry
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• GASTON: Galactic Star Formation with NIKA2. Evidence for the mass growth of star-forming clumps
• A possible observational bias in the estimation of the virial parameter in virialized clumps
• The chemical structure of young high-mass star-forming clumps: (I) Deuteration
• Comparing Models for IMF Variation Across Cosmological Time in Milky Way-like Galaxies
• Galactic interstellar sulfur isotopes: A radial ${}^{32}$S$/$${}^{34}$S gradient?
• The Cosmic Microwave Background and the Stellar Initial Mass Function
• In search of infall motion in molecular clumps III: HCO+ (1-0) and H13CO+ (1-0) mapping observations toward the confirmed infall sources
• The Evolutionary Status of Protostellar Clumps Hosting Class II Methanol Masers
• Probing the massive star forming environment - a multiwavelength investigation of the filamentary IRDC G333.73+0.37
• Searching for Inflow Towards Massive Starless Clump Candidates Identified in the Bolocam Galactic Plane Survey
• The galaxy-wide stellar initial mass function in the presence of cluster-to-cluster IMF variations
• The location, clustering, and propagation of massive star formation in giant molecular clouds
• HII regions and high-mass starless clump candidates I: Catalogs and properties
• Fragmentation of the High-mass "Starless'' Core G10.21-0.31: a Coherent Evolutionary Picture for Star Formation
• Infrared Dark Clouds and high-mass star formation activity in Galactic Molecular Clouds
• VERA astrometry toward the Perseus arm gap
• Searching for shocks in high-mass starless clump candidates
• A survey of SiO $J=$ 1 -- 0 emission toward massive star-forming regions
• High-Mass Starless Clumps: Dynamical State and Correlation Between Physical Parameters
• Hyperfine Group Ratio: A Recipe for Deriving Kinetic Temperature from Ammonia Inversion Lines
• Unveiling the nature of candidate high-mass young stellar objects in the Magellanic Clouds with near-IR spectroscopy
• Cloud-cloud collision and star formation in G013.313+0.193
• Spatial distributions and kinematics of shocked and ionized gas in M17
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• Early Science with the Large Millimetre Telescope: Fragmentation of molecular clumps in the Galaxy
• Cyanopolyyne line survey towards high-mass star-forming regions with TMRT
• The Rosetta Stone Project. II. The correlation between star formation efficiency and L/M indicator for the evolutionary stages of star-forming clumps in post-processed radiative magnetohydrodynamics simulations
• A Systematic Observational Study on Galactic Interstellar Ratio 18O/17O. II. C18O and C17O J=2-1 Data Analysis
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• Molecular deuterations in massive Starless Clump Candidates
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• Dense cores in the Seahorse infrared dark cloud: physical properties from modified blackbody fits to the far-infrared-submillimetre spectral energy distributions
• Submillimeter continuum variability in Planck Galactic cold clumps
• Discovery of widespread non-metastable ammonia masers in the Milky Way
• Mid-Infrared and Maser Flux Variability Correlation in Massive Young Stellar Object G036.70+00.09
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• Which Molecular Cloud Structures Are Bound?
• NH3 (1,1) hyperfine intensity anomalies in infall sources
• Properties of Contracting Massive Protostellar Cores
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