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The SEDIGISM survey: Molecular clouds in the inner Galaxy

Duarte-Cabral, A. (author)
Cardiff University,Korea Astronomy and Space Science Institute
Colombo, D. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Urquhart, J. S. (author)
University Of Kent,Korea Astronomy and Space Science Institute
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Ginsburg, A. (author)
University of Florida,Korea Astronomy and Space Science Institute
Russeil, D. (author)
Korea Astronomy and Space Science Institute,Laboratoire d'Astrophysique de Marseille
Schuller, F. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Anderson, L. D. (author)
Korea Astronomy and Space Science Institute,West Virginia University
Barnes, P. J. (author)
University of New England,Korea Astronomy and Space Science Institute,Space Science Institute
Beltrán, M. (author)
Korea Astronomy and Space Science Institute,Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory
Beuther, H. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Bontemps, S. (author)
Korea Astronomy and Space Science Institute,Université de Bordeaux,University of Bordeaux
Bronfman, Leonardo (author)
Universidad de Chile (UCH),University of Chile (UCH),Korea Astronomy and Space Science Institute
Csengeri, T. (author)
Korea Astronomy and Space Science Institute,Université de Bordeaux,University of Bordeaux
Dobbs, C. L. (author)
Korea Astronomy and Space Science Institute,University of Exeter
Eden, D. J. (author)
Liverpool John Moores University,Korea Astronomy and Space Science Institute
Giannetti, A. (author)
Korea Astronomy and Space Science Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Kauffmann, J. (author)
Korea Astronomy and Space Science Institute,Massachusetts Institute of Technology (MIT)
Mattern, M. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Medina, S. N.X. (author)
Korea Astronomy and Space Science Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Menten, K. M. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Lee, M. Y. (author)
Korea Astronomy and Space Science Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Pettitt, A. R. (author)
Hokkaido University,Korea Astronomy and Space Science Institute
Riener, Manuel (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Rigby, Andrew (author)
Cardiff University,Korea Astronomy and Space Science Institute
Traficante, A. (author)
Korea Astronomy and Space Science Institute,Istituto nazionale di astrofisica (INAF)
Veena, V. S. (author)
Universität zu Köln,University of Cologne,Korea Astronomy and Space Science Institute
Wienen, M. (author)
Korea Astronomy and Space Science Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Wyrowski, F. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Agurto, C. (author)
European Southern Observatory Santiago,Korea Astronomy and Space Science Institute
Azagra, F. (author)
European Southern Observatory Santiago,Korea Astronomy and Space Science Institute
Cesaroni, R. (author)
Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory,Korea Astronomy and Space Science Institute
Finger, Ricardo (author)
Universidad de Chile (UCH),University of Chile (UCH),Korea Astronomy and Space Science Institute
Gonzalez, E. (author)
European Southern Observatory Santiago,Korea Astronomy and Space Science Institute
Henning, T. (author)
Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Hernandez, A. K. (author)
University of Wisconsin Madison,Korea Astronomy and Space Science Institute
Kainulainen, Jouni, 1979 (author)
Chalmers tekniska högskola,Chalmers University of Technology,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Korea Astronomy and Space Science Institute
Leurini, S. (author)
Istituto nazionale di astrofisica (INAF),Korea Astronomy and Space Science Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Lopez, S. (author)
Korea Astronomy and Space Science Institute,University of Florida
Mac-Auliffe, F. (author)
Korea Astronomy and Space Science Institute,European Southern Observatory Santiago
Mazumdar, P. (author)
Korea Astronomy and Space Science Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Molinari, S. (author)
Korea Astronomy and Space Science Institute,Istituto nazionale di astrofisica (INAF)
Motte, F. (author)
Korea Astronomy and Space Science Institute,Université Grenoble Alpes,Grenoble Alpes University
Muller, E. (author)
Macquarie University,Korea Astronomy and Space Science Institute
Nguyen-Luong, Quang (author)
Massachusetts Institute of Technology (MIT),Korea Astronomy and Space Science Institute
Parra Barraza, Rodrigo, 1974 (author)
Korea Astronomy and Space Science Institute,European Southern Observatory Santiago
Perez-Beaupuits, J. P. (author)
Korea Astronomy and Space Science Institute,European Southern Observatory Santiago
Montenegro-Montes, F.M. (author)
Korea Astronomy and Space Science Institute,European Southern Observatory Santiago
Moore, T. J.T. (author)
Korea Astronomy and Space Science Institute,Liverpool John Moores University
Ragan, S. E. (author)
Cardiff University,Korea Astronomy and Space Science Institute
Sanchez-Monge, A. (author)
Korea Astronomy and Space Science Institute,Universität zu Köln,University of Cologne
Sanna, A. (author)
Korea Astronomy and Space Science Institute,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
Schilke, P. (author)
Universität zu Köln,University of Cologne,Korea Astronomy and Space Science Institute
Schisano, E. (author)
Korea Astronomy and Space Science Institute,Istituto nazionale di astrofisica (INAF)
Schneider, N. (author)
Korea Astronomy and Space Science Institute,Universität zu Köln,University of Cologne
Suri, Sümeyye (author)
Korea Astronomy and Space Science Institute,Universität zu Köln,University of Cologne
Testi, L. (author)
Korea Astronomy and Space Science Institute,Universität zu Köln,University of Cologne
Torstensson, Karl, 1977 (author)
European Southern Observatory Santiago,Korea Astronomy and Space Science Institute
Venegas, P. (author)
Korea Astronomy and Space Science Institute,European Southern Observatory Santiago
Wang, Ke (author)
Korea Astronomy and Space Science Institute,Beijing University of Technology
Zavagno, A. (author)
Laboratoire d'Astrophysique de Marseille,Korea Astronomy and Space Science Institute
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 (creator_code:org_t)
2020-09-11
2021
English.
In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 500:3, s. 3027-3049
Related links:
https://kar.kent.ac....
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https://doi.org/10.1...
https://research.cha...
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  • Research review (peer-reviewed)
Abstract Subject headings
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  • We use the 13CO(2-1) emission from the SEDIGISM (Structure, Excitation, and Dynamics of the Inner Galactic InterStellar Medium) high-resolution spectral-line survey of the inner Galaxy, to extract the molecular cloud population with a large dynamic range in spatial scales, using the Spectral Clustering for Interstellar Molecular Emission Segmentation (SCIMES) algorithm. This work compiles a cloud catalogue with a total of 10 663 molecular clouds, 10 300 of which we were able to assign distances and compute physical properties. We study some of the global properties of clouds using a science sample, consisting of 6664 well-resolved sources and for which the distance estimates are reliable. In particular, we compare the scaling relations retrieved from SEDIGISM to those of other surveys, and we explore the properties of clouds with and without high-mass star formation. Our results suggest that there is no single global property of a cloud that determines its ability to form massive stars, although we find combined trends of increasing mass, size, surface density, and velocity dispersion for the sub-sample of clouds with ongoing high-mass star formation. We then isolate the most extreme clouds in the SEDIGISM sample (i.e. clouds in the tails of the distributions) to look at their overall Galactic distribution, in search for hints of environmental effects. We find that, for most properties, the Galactic distribution of the most extreme clouds is only marginally different to that of the global cloud population. The Galactic distribution of the largest clouds, the turbulent clouds and the high-mass star-forming clouds are those that deviate most significantly from the global cloud population. We also find that the least dynamically active clouds (with low velocity dispersion or low virial parameter) are situated further afield, mostly in the least populated areas. However, we suspect that part of these trends may be affected by some observational biases (such as completeness and survey limitations), and thus require further follow up work in order to be confirmed.

Subject headings

NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Meteorologi och atmosfärforskning (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Meteorology and Atmospheric Sciences (hsv//eng)
NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
NATURVETENSKAP  -- Fysik -- Annan fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Other Physics Topics (hsv//eng)

Keyword

Stars: Formation
ISM: Clouds
Galaxy: Structure
Galaxies: ISM, star formation

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