Eden, DJ;
Liu, T;
Moore, TJT;
Di Francesco, J;
Fuller, G;
Kim, KT;
Li, D;
... Yadav, RK; + view all
(2024)
A study of Galactic Plane Planck Galactic cold clumps observed by SCOPE and the JCMT Plane Survey.
Monthly Notices of the Royal Astronomical Society
, 530
(4)
pp. 5192-5208.
10.1093/mnras/stae1179.
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Abstract
We have investigated the physical properties of Planck Galactic Cold Clumps (PGCCs) located in the Galactic Plane, using the JCMT Plane Survey (JPS) and the SCUBA-2 Continuum Observations of Pre-protostellar Evolution (SCOPE) survey. By utilizing a suite of molecular-line surveys, velocities, and distances were assigned to the compact sources within the PGCCs, placing them in a Galactic context. The properties of these compact sources show no large-scale variations with Galactic environment. Investigating the star-forming content of the sample, we find that the luminosity-to-mass ratio (L/M) is an order of magnitude lower than in other Galactic studies, indicating that these objects are hosting lower levels of star formation. Finally, by comparing ATLASGAL sources that are associated or are not associated with PGCCs, we find that those associated with PGCCs are typically colder, denser, and have a lower L/M ratio, hinting that PGCCs are a distinct population of Galactic Plane sources.
| Type: | Article |
|---|---|
| Title: | A study of Galactic Plane Planck Galactic cold clumps observed by SCOPE and the JCMT Plane Survey |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1093/mnras/stae1179 |
| Publisher version: | http://dx.doi.org/10.1093/mnras/stae1179 |
| Language: | English |
| Additional information: | © 2024 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
| Keywords: | surveys, stars: formation, ISM: clouds, submillimetre: ISM |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10192830 |
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