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ALMA survey of massive cluster progenitors from ATLASGAL. Limited fragmentation at the early evolutionary stage of massive clumps
| hal.structure.identifier | Max Planck Institute for Radio Astronomy | |
| dc.contributor.author | CSENGERI, T. | |
| hal.structure.identifier | FORMATION STELLAIRE 2017 | |
| dc.contributor.author | BONTEMPS, Sylvain | |
| hal.structure.identifier | Max Planck Institute for Radio Astronomy | |
| dc.contributor.author | WYROWSKI, F. | |
| hal.structure.identifier | Astrophysique Interprétation Modélisation [AIM (UMR7158 / UMR_E_9005 / UM_112)] | |
| hal.structure.identifier | Institut de Planétologie et d'Astrophysique de Grenoble [IPAG] | |
| dc.contributor.author | MOTTE, F. | |
| hal.structure.identifier | Millimeter and Submillimeter Astronomy | |
| dc.contributor.author | MENTEN, K. M. | |
| hal.structure.identifier | Max-Planck-Institut für Astronomie [MPIA] | |
| dc.contributor.author | BEUTHER, H. | |
| hal.structure.identifier | Departamento de Astronomia [DAS] | |
| dc.contributor.author | BRONFMAN, L. | |
| hal.structure.identifier | Centre de Recherche Astrophysique de Lyon [CRAL] | |
| dc.contributor.author | COMMERCON, B. | |
| hal.structure.identifier | AMOR 2017 | |
| hal.structure.identifier | Institut de RadioAstronomie Millimétrique [IRAM] | |
| dc.contributor.author | CHAPILLON, E. | |
| hal.structure.identifier | School of Physics and Astronomy [Exeter] | |
| hal.structure.identifier | School of Physics and Astronomy [Cardiff] | |
| dc.contributor.author | DUARTE-CABRAL, A. | |
| hal.structure.identifier | Jodrell Bank Centre for Astrophysics [JBCA] | |
| dc.contributor.author | FULLER, G. A. | |
| hal.structure.identifier | Max-Planck-Institut für Astronomie [MPIA] | |
| dc.contributor.author | HENNING, Th. | |
| hal.structure.identifier | Max Planck Institute for Radio Astronomy | |
| dc.contributor.author | LEURINI, S. | |
| hal.structure.identifier | Astrophysics Research Institute [Liverpool] [ARI] | |
| dc.contributor.author | LONGMORE, S. | |
| dc.contributor.author | PALAU, A. | |
| hal.structure.identifier | School of Physics and Astronomy [Cardiff] | |
| dc.contributor.author | PERETTO, N. | |
| hal.structure.identifier | Max Planck Institute for Radio Astronomy | |
| dc.contributor.author | SCHULLER, F. | |
| hal.structure.identifier | University of Florida [Gainesville] [UF] | |
| dc.contributor.author | TAN, J. C. | |
| hal.structure.identifier | European Southern Observatory [ESO] | |
| hal.structure.identifier | INAF - Osservatorio Astrofisico di Arcetri [OAA] | |
| dc.contributor.author | TESTI, L. | |
| hal.structure.identifier | Istituto di Astrofisica e Planetologia Spaziali - INAF [IAPS] | |
| dc.contributor.author | TRAFICANTE, A. | |
| hal.structure.identifier | School of Physical Sciences, University of Kent | |
| dc.contributor.author | URQUHART, J. S. | |
| dc.date.issued | 2017-03 | |
| dc.identifier.issn | 0004-6361 | |
| dc.description.abstractEn | The early evolution of massive cluster progenitors is poorly understood. We investigate the fragmentation properties from 0.3 pc to 0.06 pc scales of a homogenous sample of infrared-quiet massive clumps within 4.5 kpc selected from the ATLASGAL survey. Using the ALMA 7m array we detect compact dust continuum emission towards all targets, and find that fragmentation, at these scales, is limited. The mass distribution of the fragments uncovers a large fraction of cores above 40 $M_\odot$, corresponding to massive dense cores (MDCs) with masses up to ~400 $M_\odot$. 77 % of the clumps contain at most 3 MDCs per clump, and we also reveal single clumps/MDCs. The most massive cores are formed within the more massive clumps, and a high concentration of mass on small scales reveals a high core formation efficiency. The mass of MDCs highly exceeds the local thermal Jeans-mass, and observational evidence is lacking for a sufficiently high level of turbulence or strong enough magnetic fields to keep the most massive MDCs in equilibrium. If already collapsing, the observed fragmentation properties with a high core formation efficiency are consistent with the collapse setting in at parsec scales. | |
| dc.language.iso | en | |
| dc.publisher | EDP Sciences | |
| dc.subject.en | Astrophysics - Astrophysics of Galaxies | |
| dc.title.en | ALMA survey of massive cluster progenitors from ATLASGAL. Limited fragmentation at the early evolutionary stage of massive clumps | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1051/0004-6361/201629754 | |
| dc.subject.hal | Planète et Univers [physics]/Astrophysique [astro-ph]/Astrophysique galactique [astro-ph.GA] | |
| dc.subject.hal | Planète et Univers [physics] | |
| dc.identifier.arxiv | 1703.03273 | |
| bordeaux.journal | Astronomy and Astrophysics - A&A | |
| bordeaux.page | id.L10 | |
| bordeaux.volume | 600 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-01489046 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-01489046v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Astronomy%20and%20Astrophysics%20-%20A&A&rft.date=2017-03&rft.volume=600&rft.spage=id.L10&rft.epage=id.L10&rft.eissn=0004-6361&rft.issn=0004-6361&rft.au=CSENGERI,%20T.&BONTEMPS,%20Sylvain&WYROWSKI,%20F.&MOTTE,%20F.&MENTEN,%20K.%20M.&rft.genre=article |
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