ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex

Autores
Nony, T.; Galván Madrid, R.; Motte, F.; Pouteau, Y.; Cunningham, N.; Louvet, F.; Stutz, A. M.; Lefloch, B.; Bontemps, Sophie; Brouillet, N.; Ginsburg, A.; Joncour, I.; Herpin, F.; Sanhueza, P.; Csengeri, T.; Towner, A. P. M.; Bonfand, M.; Fernandez Lopez, Manuel; Baug, T.; Bronfman, L.; Busquets, Gabriel; Di Francesco, J.; Gusdorf, A.; Lu, X.; Olguin, F.; Valeille-Manet, M.; Whitworth, A. P.
Año de publicación
2023
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. The origin of the stellar initial mass function (IMF) and its relation with the core mass function (CMF) are actively debated issues with important implications in astrophysics. Recent observations in the W43 molecular complex of top-heavy CMFs, with an excess of high-mass cores compared to the canonical mass distribution, raise questions about our understanding of the star formation processes and their evolution in space and time.Aims: We aim to compare populations of protostellar and prestellar cores in three regions imaged in the ALMA-IMF Large Program.Methods: We created an homogeneous core catalogue in W43, combining a new core extraction in W43-MM1 with the catalogue of W43-MM2&MM3 presented in a previous work. Our detailed search for protostellar outflows enabled us to identify between 23 and 30 protostellar cores out of 127 cores in W43-MM1 and between 42 and 51 protostellar cores out of 205 cores in W43-MM2&MM3. Cores with neither outflows nor hot core emission are classified as prestellar candidates.Results: We found a similar fraction of cores which are protostellar in the two regions, about 35%. This fraction strongly varies in mass, from fpro ≃ 15-20% at low mass, between 0.8 and 3 M⊙ up to fpro ≃ 80% above 16 M⊙. Protostellar cores are found to be, on average, more massive and smaller in size than prestellar cores. Our analysis also revealed that the high-mass slope of the prestellar CMF in W43, α = -1.46-0.19+0.12, is consistent with the Salpeter slope, and thus the top-heavy form measured for the global CMF, α = −0.96 ± 0.09, is due to the protostellar core population.Conclusions: Our results could be explained by `clump-fed´ models in which cores grow in mass, especially during the protostellar phase, through inflow from their environment. The difference between the slopes of the prestellar and protostellar CMFs moreover implies that high-mass cores grow more in mass than low-mass cores.The CO(2-1) data cubes of W43-MM2 and W43-MM3, and full Tables F.1 and F.2 are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/674/A75
Fil: Nony, T.. Universidad Autónoma de México. Instituto de Radioastronomía y Astrofísica ; México
Fil: Galván Madrid, R.. Universidad Autónoma de México. Instituto de Radioastronomía y Astrofísica ; México
Fil: Motte, F.. Universite Grenoble Alpes; Suiza
Fil: Pouteau, Y.. Universite Grenoble Alpes; Suiza
Fil: Cunningham, N.. Universite Grenoble Alpes; Suiza
Fil: Louvet, F.. Universite Grenoble Alpes; Suiza
Fil: Stutz, A. M.. Universidad de Concepción; Chile
Fil: Lefloch, B.. Universite Grenoble Alpes; Suiza
Fil: Bontemps, Sophie. Universite de Bordeaux; Francia
Fil: Brouillet, N.. Universite de Bordeaux; Francia
Fil: Ginsburg, A.. University of Virginia; Estados Unidos
Fil: Joncour, I.. Universite de Bordeaux; Francia
Fil: Herpin, F.. Universite de Bordeaux; Francia
Fil: Sanhueza, P.. National Astronomical Observatory of Japan; Japón
Fil: Csengeri, T.. Universite de Bordeaux; Francia
Fil: Towner, A. P. M.. University of Virginia; Estados Unidos
Fil: Bonfand, M.. Universite de Bordeaux; Francia
Fil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Baug, T.. Korea Astronomy And Space Science Institute; Corea del Sur
Fil: Bronfman, L.. Universidad de Chile; Chile
Fil: Busquets, Gabriel. Universidad de Barcelona; España
Fil: Di Francesco, J.. Academia Sinica. Institute of Astronomy and Astrophysics; China
Fil: Gusdorf, A.. Universite Paris-Saclay; Francia
Fil: Lu, X.. Academia Sinica. Institute of Astronomy and Astrophysics; China
Fil: Olguin, F.. National Tsing Hua University; China
Fil: Valeille-Manet, M.. Universite de Bordeaux; Francia
Fil: Whitworth, A. P.. University of Virginia; Estados Unidos
Materia
stars: formation
stars: massive
stars: protostars
ISM: clouds
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/219065

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oai_identifier_str oai:ri.conicet.gov.ar:11336/219065
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complexNony, T.Galván Madrid, R.Motte, F.Pouteau, Y.Cunningham, N.Louvet, F.Stutz, A. M.Lefloch, B.Bontemps, SophieBrouillet, N.Ginsburg, A.Joncour, I.Herpin, F.Sanhueza, P.Csengeri, T.Towner, A. P. M.Bonfand, M.Fernandez Lopez, ManuelBaug, T.Bronfman, L.Busquets, GabrielDi Francesco, J.Gusdorf, A.Lu, X.Olguin, F.Valeille-Manet, M.Whitworth, A. P.stars: formationstars: massivestars: protostarsISM: cloudshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. The origin of the stellar initial mass function (IMF) and its relation with the core mass function (CMF) are actively debated issues with important implications in astrophysics. Recent observations in the W43 molecular complex of top-heavy CMFs, with an excess of high-mass cores compared to the canonical mass distribution, raise questions about our understanding of the star formation processes and their evolution in space and time.Aims: We aim to compare populations of protostellar and prestellar cores in three regions imaged in the ALMA-IMF Large Program.Methods: We created an homogeneous core catalogue in W43, combining a new core extraction in W43-MM1 with the catalogue of W43-MM2&MM3 presented in a previous work. Our detailed search for protostellar outflows enabled us to identify between 23 and 30 protostellar cores out of 127 cores in W43-MM1 and between 42 and 51 protostellar cores out of 205 cores in W43-MM2&MM3. Cores with neither outflows nor hot core emission are classified as prestellar candidates.Results: We found a similar fraction of cores which are protostellar in the two regions, about 35%. This fraction strongly varies in mass, from fpro ≃ 15-20% at low mass, between 0.8 and 3 M⊙ up to fpro ≃ 80% above 16 M⊙. Protostellar cores are found to be, on average, more massive and smaller in size than prestellar cores. Our analysis also revealed that the high-mass slope of the prestellar CMF in W43, α = -1.46-0.19+0.12, is consistent with the Salpeter slope, and thus the top-heavy form measured for the global CMF, α = −0.96 ± 0.09, is due to the protostellar core population.Conclusions: Our results could be explained by `clump-fed´ models in which cores grow in mass, especially during the protostellar phase, through inflow from their environment. The difference between the slopes of the prestellar and protostellar CMFs moreover implies that high-mass cores grow more in mass than low-mass cores.The CO(2-1) data cubes of W43-MM2 and W43-MM3, and full Tables F.1 and F.2 are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/674/A75Fil: Nony, T.. Universidad Autónoma de México. Instituto de Radioastronomía y Astrofísica ; MéxicoFil: Galván Madrid, R.. Universidad Autónoma de México. Instituto de Radioastronomía y Astrofísica ; MéxicoFil: Motte, F.. Universite Grenoble Alpes; SuizaFil: Pouteau, Y.. Universite Grenoble Alpes; SuizaFil: Cunningham, N.. Universite Grenoble Alpes; SuizaFil: Louvet, F.. Universite Grenoble Alpes; SuizaFil: Stutz, A. M.. Universidad de Concepción; ChileFil: Lefloch, B.. Universite Grenoble Alpes; SuizaFil: Bontemps, Sophie. Universite de Bordeaux; FranciaFil: Brouillet, N.. Universite de Bordeaux; FranciaFil: Ginsburg, A.. University of Virginia; Estados UnidosFil: Joncour, I.. Universite de Bordeaux; FranciaFil: Herpin, F.. Universite de Bordeaux; FranciaFil: Sanhueza, P.. National Astronomical Observatory of Japan; JapónFil: Csengeri, T.. Universite de Bordeaux; FranciaFil: Towner, A. P. M.. University of Virginia; Estados UnidosFil: Bonfand, M.. Universite de Bordeaux; FranciaFil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Baug, T.. Korea Astronomy And Space Science Institute; Corea del SurFil: Bronfman, L.. Universidad de Chile; ChileFil: Busquets, Gabriel. Universidad de Barcelona; EspañaFil: Di Francesco, J.. Academia Sinica. Institute of Astronomy and Astrophysics; ChinaFil: Gusdorf, A.. Universite Paris-Saclay; FranciaFil: Lu, X.. Academia Sinica. Institute of Astronomy and Astrophysics; ChinaFil: Olguin, F.. National Tsing Hua University; ChinaFil: Valeille-Manet, M.. Universite de Bordeaux; FranciaFil: Whitworth, A. P.. University of Virginia; Estados UnidosEDP Sciences2023-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/219065Nony, T.; Galván Madrid, R.; Motte, F.; Pouteau, Y.; Cunningham, N.; et al.; ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex; EDP Sciences; Astronomy and Astrophysics; 674; A75; 6-2023; 1-270004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202244762info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202244762info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:55Zoai:ri.conicet.gov.ar:11336/219065instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:09:55.356CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
title ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
spellingShingle ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
Nony, T.
stars: formation
stars: massive
stars: protostars
ISM: clouds
title_short ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
title_full ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
title_fullStr ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
title_full_unstemmed ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
title_sort ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex
dc.creator.none.fl_str_mv Nony, T.
Galván Madrid, R.
Motte, F.
Pouteau, Y.
Cunningham, N.
Louvet, F.
Stutz, A. M.
Lefloch, B.
Bontemps, Sophie
Brouillet, N.
Ginsburg, A.
Joncour, I.
Herpin, F.
Sanhueza, P.
Csengeri, T.
Towner, A. P. M.
Bonfand, M.
Fernandez Lopez, Manuel
Baug, T.
Bronfman, L.
Busquets, Gabriel
Di Francesco, J.
Gusdorf, A.
Lu, X.
Olguin, F.
Valeille-Manet, M.
Whitworth, A. P.
author Nony, T.
author_facet Nony, T.
Galván Madrid, R.
Motte, F.
Pouteau, Y.
Cunningham, N.
Louvet, F.
Stutz, A. M.
Lefloch, B.
Bontemps, Sophie
Brouillet, N.
Ginsburg, A.
Joncour, I.
Herpin, F.
Sanhueza, P.
Csengeri, T.
Towner, A. P. M.
Bonfand, M.
Fernandez Lopez, Manuel
Baug, T.
Bronfman, L.
Busquets, Gabriel
Di Francesco, J.
Gusdorf, A.
Lu, X.
Olguin, F.
Valeille-Manet, M.
Whitworth, A. P.
author_role author
author2 Galván Madrid, R.
Motte, F.
Pouteau, Y.
Cunningham, N.
Louvet, F.
Stutz, A. M.
Lefloch, B.
Bontemps, Sophie
Brouillet, N.
Ginsburg, A.
Joncour, I.
Herpin, F.
Sanhueza, P.
Csengeri, T.
Towner, A. P. M.
Bonfand, M.
Fernandez Lopez, Manuel
Baug, T.
Bronfman, L.
Busquets, Gabriel
Di Francesco, J.
Gusdorf, A.
Lu, X.
Olguin, F.
Valeille-Manet, M.
Whitworth, A. P.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv stars: formation
stars: massive
stars: protostars
ISM: clouds
topic stars: formation
stars: massive
stars: protostars
ISM: clouds
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context. The origin of the stellar initial mass function (IMF) and its relation with the core mass function (CMF) are actively debated issues with important implications in astrophysics. Recent observations in the W43 molecular complex of top-heavy CMFs, with an excess of high-mass cores compared to the canonical mass distribution, raise questions about our understanding of the star formation processes and their evolution in space and time.Aims: We aim to compare populations of protostellar and prestellar cores in three regions imaged in the ALMA-IMF Large Program.Methods: We created an homogeneous core catalogue in W43, combining a new core extraction in W43-MM1 with the catalogue of W43-MM2&MM3 presented in a previous work. Our detailed search for protostellar outflows enabled us to identify between 23 and 30 protostellar cores out of 127 cores in W43-MM1 and between 42 and 51 protostellar cores out of 205 cores in W43-MM2&MM3. Cores with neither outflows nor hot core emission are classified as prestellar candidates.Results: We found a similar fraction of cores which are protostellar in the two regions, about 35%. This fraction strongly varies in mass, from fpro ≃ 15-20% at low mass, between 0.8 and 3 M⊙ up to fpro ≃ 80% above 16 M⊙. Protostellar cores are found to be, on average, more massive and smaller in size than prestellar cores. Our analysis also revealed that the high-mass slope of the prestellar CMF in W43, α = -1.46-0.19+0.12, is consistent with the Salpeter slope, and thus the top-heavy form measured for the global CMF, α = −0.96 ± 0.09, is due to the protostellar core population.Conclusions: Our results could be explained by `clump-fed´ models in which cores grow in mass, especially during the protostellar phase, through inflow from their environment. The difference between the slopes of the prestellar and protostellar CMFs moreover implies that high-mass cores grow more in mass than low-mass cores.The CO(2-1) data cubes of W43-MM2 and W43-MM3, and full Tables F.1 and F.2 are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/674/A75
Fil: Nony, T.. Universidad Autónoma de México. Instituto de Radioastronomía y Astrofísica ; México
Fil: Galván Madrid, R.. Universidad Autónoma de México. Instituto de Radioastronomía y Astrofísica ; México
Fil: Motte, F.. Universite Grenoble Alpes; Suiza
Fil: Pouteau, Y.. Universite Grenoble Alpes; Suiza
Fil: Cunningham, N.. Universite Grenoble Alpes; Suiza
Fil: Louvet, F.. Universite Grenoble Alpes; Suiza
Fil: Stutz, A. M.. Universidad de Concepción; Chile
Fil: Lefloch, B.. Universite Grenoble Alpes; Suiza
Fil: Bontemps, Sophie. Universite de Bordeaux; Francia
Fil: Brouillet, N.. Universite de Bordeaux; Francia
Fil: Ginsburg, A.. University of Virginia; Estados Unidos
Fil: Joncour, I.. Universite de Bordeaux; Francia
Fil: Herpin, F.. Universite de Bordeaux; Francia
Fil: Sanhueza, P.. National Astronomical Observatory of Japan; Japón
Fil: Csengeri, T.. Universite de Bordeaux; Francia
Fil: Towner, A. P. M.. University of Virginia; Estados Unidos
Fil: Bonfand, M.. Universite de Bordeaux; Francia
Fil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Baug, T.. Korea Astronomy And Space Science Institute; Corea del Sur
Fil: Bronfman, L.. Universidad de Chile; Chile
Fil: Busquets, Gabriel. Universidad de Barcelona; España
Fil: Di Francesco, J.. Academia Sinica. Institute of Astronomy and Astrophysics; China
Fil: Gusdorf, A.. Universite Paris-Saclay; Francia
Fil: Lu, X.. Academia Sinica. Institute of Astronomy and Astrophysics; China
Fil: Olguin, F.. National Tsing Hua University; China
Fil: Valeille-Manet, M.. Universite de Bordeaux; Francia
Fil: Whitworth, A. P.. University of Virginia; Estados Unidos
description Context. The origin of the stellar initial mass function (IMF) and its relation with the core mass function (CMF) are actively debated issues with important implications in astrophysics. Recent observations in the W43 molecular complex of top-heavy CMFs, with an excess of high-mass cores compared to the canonical mass distribution, raise questions about our understanding of the star formation processes and their evolution in space and time.Aims: We aim to compare populations of protostellar and prestellar cores in three regions imaged in the ALMA-IMF Large Program.Methods: We created an homogeneous core catalogue in W43, combining a new core extraction in W43-MM1 with the catalogue of W43-MM2&MM3 presented in a previous work. Our detailed search for protostellar outflows enabled us to identify between 23 and 30 protostellar cores out of 127 cores in W43-MM1 and between 42 and 51 protostellar cores out of 205 cores in W43-MM2&MM3. Cores with neither outflows nor hot core emission are classified as prestellar candidates.Results: We found a similar fraction of cores which are protostellar in the two regions, about 35%. This fraction strongly varies in mass, from fpro ≃ 15-20% at low mass, between 0.8 and 3 M⊙ up to fpro ≃ 80% above 16 M⊙. Protostellar cores are found to be, on average, more massive and smaller in size than prestellar cores. Our analysis also revealed that the high-mass slope of the prestellar CMF in W43, α = -1.46-0.19+0.12, is consistent with the Salpeter slope, and thus the top-heavy form measured for the global CMF, α = −0.96 ± 0.09, is due to the protostellar core population.Conclusions: Our results could be explained by `clump-fed´ models in which cores grow in mass, especially during the protostellar phase, through inflow from their environment. The difference between the slopes of the prestellar and protostellar CMFs moreover implies that high-mass cores grow more in mass than low-mass cores.The CO(2-1) data cubes of W43-MM2 and W43-MM3, and full Tables F.1 and F.2 are available at the CDS via anonymous ftp to cdsarc.cds.unistra.fr (ftp://130.79.128.5) or via https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/674/A75
publishDate 2023
dc.date.none.fl_str_mv 2023-06
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/219065
Nony, T.; Galván Madrid, R.; Motte, F.; Pouteau, Y.; Cunningham, N.; et al.; ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex; EDP Sciences; Astronomy and Astrophysics; 674; A75; 6-2023; 1-27
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/219065
identifier_str_mv Nony, T.; Galván Madrid, R.; Motte, F.; Pouteau, Y.; Cunningham, N.; et al.; ALMA-IMF. V : prestellar and protostellar core populations in the W43 cloud complex; EDP Sciences; Astronomy and Astrophysics; 674; A75; 6-2023; 1-27
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/202244762
info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202244762
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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