ATLASGAL --- properties of a complete sample of Galactic clumps

Abstract

Abridged: ATLASGAL is an unbiased 870 micron submillimetre survey of the inner Galactic plane. It provides a large and systematic inventory of all massive, dense clumps in the Galaxy (>1000 Msun) and includes representative samples of all embedded stages of high-mass star formation. Here we present the first detailed census of the properties (velocities, distances, luminosities and masses) and spatial distribution of a complete sample of ~8000 dense clumps located in the Galactic disk. We derive highly reliable velocities and distances to ~97% of the sample and use mid- and far-infrared survey data to develop an evolutionary classification scheme that we apply to the whole sample. Comparing the evolutionary subsamples reveals trends for increasing dust temperatures, luminosities and line-widths as a function of evolution indicating that the feedback from the embedded proto-clusters is having a significant impact on the structure and dynamics of their natal clumps. We find 88\,per\,cent are already associated with star formation at some level. We also find the clump mass to be independent of evolution suggesting that the clumps form with the majority of their mass in-situ. We estimate the statistical lifetime of the quiescent stage to be ~5 x 10^4 yr for clump masses ~1000 Msun decreasing to ~1 x 10^4 yr for clump masses >10000 Msun. We find a strong correlation between the fraction of clumps associated with massive stars and peak column density. The fraction is initially small at low column densities but reaching 100\,per\,cent for column densities above 10^{23} cm^{-2}; there are no clumps with column density clumps above this value that are not already associated with massive star formation. All of the evidence is consistent with a dynamic view of star formation wherein the clumps form rapidly and are initially very unstable so that star formation quickly ensues.

Accepted for publication in MNRAS. Consists of 45 pages, including 10 pages of appendices. Full versions of Tables 2, 5, 8 and A2 will be made available via CDS once the paper has been published as will full versions of Figures 6, 8 and A1. The quality of the images has been reduced but a high-resolution version is available on request. V2: some minor corrections made

References in corpus (26)

• The Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey
• The VLA Galactic Plane Survey
• Physical properties of molecular clouds for the entire Milky Way disk
• The earliest phases of high-mass star formation: a 3 square degree millimeter continuum mapping of Cygnus X
• Kinematic Distances to Molecular Clouds identified in the Galactic Ring Survey
• ATLASGAL --- towards a complete sample of massive star forming clumps
• 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 ($-71.0^{\circ }<\ell <67.0^{\circ }$)
• Resolution of the Distance Ambiguity for Galactic HII Regions
• Large-scale filaments associated with Milky Way spiral arms
• Trigonometric parallaxes of star forming regions in the Sagittarius spiral arm
• The Luminosity Functions and Timescales of MYSOs and Compact HII regions
• The formation of molecular clouds in spiral galaxies
• Milky Way Kinematics: Measurements at the Subcentral Point of the Fourth Quadrant
• ATLASGAL --- Complete compact source catalogue: 280\degr\ $<\ell <$ 60\degr
• ATLASGAL-selected massive clumps in the inner Galaxy III. Dust Continuum Characterization of an Evolutionary Sample
• ATLASGAL - Kinematic distances and the dense gas mass distribution of the inner Galaxy
• Molecular clouds and clumps in the Boston University-Five College Radio Astronomy Observatory Galactic Ring Survey
• The Molecular Properties of Galactic HII Regions
• The RMS Survey: ${}^{13}$CO observations of candidate massive YSOs in the northern Galactic plane
• Characterizing the properties of cluster precursors in the MALT90 survey
• Resolving distance ambiguities towards 6.7 GHz methanol masers
• Star formation scales and efficiency in Galactic spiral arms
• Massive 70 micron quiet clumps I: evidence of embedded low/intermediate-mass star formation activity
• The prevalence of star formation as a function of Galactocentric radius
• The Mopra Southern Galactic Plane CO Survey - Data Release 1
• Parallaxes of 6.7-GHz Methanol Masers towards the G305.2 High-Mass Star Formation Region

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