Galactic star formation with NIKA2 (GASTON): Filament convergence and its link to star formation
Creators
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Peretto, N.1
- Adam, R.2
- Ade, P.1
- Ajeddig, H.3
- André, P.3
- Artis, E.4
- Aussel, H.3
- Bacmann, A.5
- Beelen, A.6
- Benoît, A.7
- Berta, S.8
- Bing, L.9
- Bourrion, O.4
- Calvo, M.7
- Catalano, A.4
- De Petris, M.10
- Désert, F.-X.5
- Doyle, S.1
- Driessen, E. F. C.8
- Gomez, A.11
- Goupy, J.7
- Kéruzoré, F.4
- Kramer, C.12
- Ladjelate, B.12
- Lagache, G.9
- Leclercq, S.8
- Lestrade, J.-F.
- Macías-Pérez, J.-F.4
- Maury, A.3
- Mauskopf, P.1, 13
- Mayet, F.4
- Monfardini, A.7
- Muñoz-Echeverría, M.4
- Perotto, L.4
- Pisano, G.1
- Ponthieu, N.5
- Revéret, V.3
- Rigby, A.1
- Ristorcelli, I.14
- Ritacco, A.6, 15
- Romero, C.16
- Roussel, H.17, 18
- Ruppin, F.19
- Schuster, K.8
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Shu, S.20
- Sievers, A.12
- Tucker, C.1
- Zylka, R.8
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1.
Cardiff University
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2.
École Polytechnique
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3.
Astrophysique, Instrumentation et Modélisation
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4.
Grenoble Institute of Technology
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5.
Institut de Planétologie et d'Astrophysique de Grenoble
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6.
University of Paris-Saclay
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7.
Institut Néel
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8.
International Research Institute for Radio Astronomy
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9.
Aix-Marseille University
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10.
Sapienza University of Rome
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11.
Centro de Astrobiología
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12.
Instituto de Radioastronomía Milimétrica
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13.
Arizona State University
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14.
Research Institute in Astrophysics and Planetology
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15.
Laboratoire de Physique de l'ENS de Lyon
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16.
University of Pennsylvania
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17.
Institut d'Astrophysique de Paris
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18.
Sorbonne University
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19.
Massachusetts Institute of Technology
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20.
California Institute of Technology
Abstract
In the past decade filaments have been recognised as a major structural element of the interstellar medium, the densest of these filaments hosting the formation of most stars. In some star-forming molecular clouds converging networks of filaments, also known as hub filament systems, can be found. These hubs are believed to be preferentially associated to massive star formation. As of today, there are no metrics that allow the systematic quantification of a filament network convergence. Here, we used the IRAM 30m NIKA2 observations of the Galactic plane from the GASTON large programme to systematically identify filaments and produce a filament convergence parameter map. We use such a map to show that: i. hub filaments represent a small fraction of the global filament population; ii. hubs host, in proportion, more massive and more luminous compact sources that non-hubs; iii. hub-hosting clumps are more evolved that non-hubs; iv. no discontinuities are observed in the properties of compact sources as a function of convergence parameter. We propose that the rapid global collapse of clumps is responsible for (re)organising filament networks into hubs and, in parallel, enhancing the mass growth of compact sources.
Additional Information
© The Authors, published by EDP Sciences, 2022. This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. NP and AJR would like to thank the STFC for financial support under the consolidated grant numbers ST/N000706/1 and ST/S00033X/1, and the Royal Society for providing computing resources under Research Grant number RG150741. We would like to thank the IRAM staff for their support during the campaigns. The NIKA2 dilution cryostat has been designed and built at the Institut Néel. In particular, we acknowledge the crucial contribution of the Cryogenics Group, and in particular Gregory Garde, Henri Rodenas, Jean Paul Leggeri, Philippe Camus. This work has been partially funded by the Foundation Nanoscience Grenoble and the LabEx FOCUS ANR-11-LABX-0013. This work is supported by the French National Research Agency under the contracts "MKIDS", "NIKA" and ANR-15-CE31-0017 and in the framework of the "Investissements d'avenir" program (ANR-15-IDEX-02). This work has benefited from the support of the European Research Council Advanced Grant ORISTARS under the European Union's Seventh Framework Programme (Grant Agreement no. 291294). F.R. acknowledges financial supports provided by NASA through SAO Award Number SV2-82023 issued by the Chandra X-Ray Observatory Center, which is operated by the Smithsonian Astrophysical Observatory for and on behalf of NASA under contract NAS8-03060.Attached Files
Published - epjconf_mmUniverse2021_00037.pdf
Submitted - 2111.03618.pdf
Files
2111.03618.pdf
Additional details
Identifiers
- Eprint ID
- 113447
- Resolver ID
- CaltechAUTHORS:20220214-834130700
Related works
- Describes
- https://arxiv.org/abs/2111.03618 (URL)
Funding
- Science and Technology Facilities Council (STFC)
- ST/N000706/1
- Science and Technology Facilities Council (STFC)
- ST/S00033X/1
- Royal Society
- RG150741
- Foundation Nanoscience Grenoble
- Agence Nationale pour la Recherche (ANR)
- ANR-11-LABX-0013
- Agence Nationale pour la Recherche (ANR)
- ANR-15-CE31-0017
- Agence Nationale pour la Recherche (ANR)
- ANR-15-IDEX-02
- European Research Council (ERC)
- 291294
- NASA
- SV2-82023
- NASA
- NAS8-03060
Dates
- Created
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2022-02-15Created from EPrint's datestamp field
- Updated
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2022-02-15Created from EPrint's last_modified field