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SEDIGISM-ATLASGAL: ...
SEDIGISM-ATLASGAL: Dense gas fraction and star formation efficiency across the Galactic disc
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- Urquhart, J. S. (author)
- University Of Kent
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- Figura, C. (author)
- Wartburg College
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- Cross, J. R. (author)
- University Of Kent
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- Wells, M. (author)
- University Of Kent
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- Moore, T. J.T. (author)
- Liverpool John Moores University
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- Eden, D. J. (author)
- Liverpool John Moores University
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- Ragan, S. E. (author)
- Cardiff University
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- Pettitt, A. R. (author)
- Hokkaido University
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- Duarte-Cabral, A. (author)
- Cardiff University
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- Colombo, D. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Schuller, F. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Leibniz-Institut Für Astrophysik Potsdam,Leibniz Institute for Astrophysics Potsdam
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- Csengeri, T. (author)
- Université de Bordeaux,University of Bordeaux
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- Mattern, M. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG),Université Paris-Saclay,University Paris-Saclay
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- Beuther, H. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Menten, K. M. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Wyrowski, F. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Anderson, L. D. (author)
- West Virginia University
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- Barnes, P. J. (author)
- Space Science Institute
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- Beltrán, M. (author)
- Osservatorio Astrofisico di Arcetri,Arcetri Astrophysical Observatory
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- Billington, S. J. (author)
- University Of Kent
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- Bronfman, Leonardo (author)
- Universidad de Chile (UCH),University of Chile (UCH)
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- Giannetti, A. (author)
- Istituto di Radioastronomia
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- Kainulainen, Jouni, 1979 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Kauffmann, J. (author)
- Massachusetts Institute of Technology (MIT)
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- Lee, M. Y. (author)
- Korea Astronomy and Space Science Institute
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- Leurini, S. (author)
- Istituto nazionale di astrofisica (INAF)
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- Medina, S. N.X. (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Montenegro-Montes, F.M. (author)
- European Southern Observatory Santiago
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- Riener, Manuel (author)
- Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Rigby, Andrew (author)
- Cardiff University
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- Sanchez-Monge, A. (author)
- Universität zu Köln,University of Cologne
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- Schilke, P. (author)
- Universität zu Köln,University of Cologne
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- Schisano, E. (author)
- Istituto nazionale di astrofisica (INAF)
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- Traficante, A. (author)
- Istituto nazionale di astrofisica (INAF)
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- Wienen, M. (author)
- University of Exeter
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(creator_code:org_t)
- 2020-09-11
- 2021
- English.
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In: Monthly Notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 500:3, s. 3050-3063
- Related links:
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https://kar.kent.ac....
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- By combining two surveys covering a large fraction of the molecular material in the Galactic disc, we investigate the role spiral arms play in the star formation process. We have matched clumps identified by APEX Telescope Large Area Survey of the Galaxy (ATLASGAL) with their parental giant molecular clouds (GMCs) as identified by SEDIGISM, and use these GMC masses, the bolometric luminosities, and integrated clump masses obtained in a concurrent paper to estimate the dense gas fractions (DGFgmc = ΣMclump/Mgmc) and the instantaneous star formation efficiencies (i.e. SFEgmc = ΣLclump/Mgmc). We find that the molecular material associated with ATLASGAL clumps is concentrated in the spiral arms (∼60 per cent found within ±10 km s-1 of an arm).We have searched for variations in the values of these physical parameters with respect to their proximity to the spiral arms, but find no evidence for any enhancement that might be attributable to the spiral arms. The combined results from a number of similar studies based on different surveys indicate that, while spiral-arm location plays a role in cloud formation and HI to H2 conversion, the subsequent star formation processes appear to depend more on local environment effects. This leads us to conclude that the enhanced star formation activity seen towards the spiral arms is the result of source crowding rather than the consequence of any physical process.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Kemiska processer (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Chemical Process Engineering (hsv//eng)
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Keyword
- Stars: Formation
- Surveys
- Galaxy: Kinematics and dynamics
- ISM: Clouds
- Submillimetre: ISM
- Galaxy: Structure
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database
- By the author/editor
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Urquhart, J. S.
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Figura, C.
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Cross, J. R.
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Wells, M.
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Moore, T. J.T.
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Eden, D. J.
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show more...
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Ragan, S. E.
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Pettitt, A. R.
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Duarte-Cabral, A ...
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Colombo, D.
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Schuller, F.
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Csengeri, T.
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Mattern, M.
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Beuther, H.
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Menten, K. M.
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Wyrowski, F.
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Anderson, L. D.
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Barnes, P. J.
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Beltrán, M.
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Billington, S. J ...
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Bronfman, Leonar ...
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Giannetti, A.
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Kainulainen, Jou ...
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Kauffmann, J.
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Lee, M. Y.
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Leurini, S.
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Medina, S. N.X.
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Montenegro-Monte ...
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Riener, Manuel
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Rigby, Andrew
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Sanchez-Monge, A ...
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Schilke, P.
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Schisano, E.
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Traficante, A.
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Wienen, M.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Chemical Process ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Other Chemistry ...
- Articles in the publication
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Monthly Notices ...
- By the university
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Chalmers University of Technology