ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing

Autores
Ginsburg, A.; Csengeri, T.; Galván Madrid, R.; Cunningham, N.; Álvarez Gutiérrez, R. H.; Baug, T.; Bonfand, M.; Bontemps, Sophie; Busquet, G.; Díaz González, D. J.; Fernandez Lopez, Manuel; Guzmán, A.; Herpin, F.; Liu, H.; López Sepulcre, A.; Louvet, F.; Maud, L.; Motte, F.; Nakamura, F.; Nony, T.; Olguin, F. A.; Pouteau, Y.; Rosolowsky, E.; Sandoval Garrido, N. A.; Svoboda, B.; Tatematsu, K.; Walker, D. L.; Whitworth, A.; Wu, B.; Wyrowski, F.
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We present the first data release of the ALMA-IMF Large Program, which covers the 12m-array continuum calibration and imaging. The ALMA-IMF Large Program is a survey of fifteen dense molecular cloud regions spanning a range of evolutionary stages that aims to measure the core mass function. We describe the data acquisition and calibration done by the Atacama Large Millimeter/submillimeter Array (ALMA) observatory and the subsequent calibration and imaging we performed. The image products are combinations of multiple 12 m array configurations created from a selection of the observed bandwidth using multi-term, multi-frequency synthesis imaging and deconvolution. The data products are self-calibrated and exhibit substantial noise improvements over the images produced from the delivered data. We compare different choices of continuum selection, calibration parameters, and image weighting parameters, demonstrating the utility and necessity of our additional processing work. Two variants of continuum selection are used and will be distributed: the 'best-sensitivity' (bsens) data, which include the full bandwidth, including bright emission lines that contaminate the continuum, and 'cleanest' (cleanest), which select portions of the spectrum that are unaffected by line emission. We present a preliminary analysis of the spectral indices of the continuum data, showing that the ALMA products are able to clearly distinguish free-free emission from dust emission, and that in some cases we are able to identify optically thick emission sources. The data products are made public with this release.
Fil: Ginsburg, A.. University of Florida; Estados Unidos
Fil: Csengeri, T.. Universite de Bordeaux; Francia
Fil: Galván Madrid, R.. Universidad Nacional Autónoma de México; México
Fil: Cunningham, N.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Álvarez Gutiérrez, R. H.. Universidad de Concepción; Chile
Fil: Baug, T.. S. N. Bose National Centre for Basic Sciences; India
Fil: Bonfand, M.. Universite de Bordeaux; Francia
Fil: Bontemps, Sophie. Universite de Bordeaux; Francia
Fil: Busquet, G.. Universite Grenoble Alpes; Francia. Consejo Superior de Investigaciones Científicas; España. Institut d’Estudis Espacials de Catalunya; España
Fil: Díaz González, D. J.. Universidad Nacional Autónoma de México; México
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: Guzmán, A.. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; Japón
Fil: Herpin, F.. Universite de Bordeaux; Francia
Fil: Liu, H.. Yunnan University; China
Fil: López Sepulcre, A.. Iram Institut de Radioastronomie Millimétrique; Francia. Universite Grenoble Alpes; Francia
Fil: Louvet, F.. Universidad de Chile; Chile. Universite Paris-Saclay; . Ecole Normale Supérieure; Francia
Fil: Maud, L.. European Southern Observatory Chile; Chile
Fil: Motte, F.. Universite Grenoble Alpes; Francia
Fil: Nakamura, F.. National Institutes Of Natural Sciences - National Astronomical Observatory Of Japan; Japón. The University Of Tokyo; Japón. The Graduate University For Advanced Studies; Japón
Fil: Nony, T.. Universidad Nacional Autónoma de México; México
Fil: Olguin, F. A.. National Tsing Hua University; China
Fil: Pouteau, Y.. Universite Grenoble Alpes; Francia
Fil: Rosolowsky, E.. University of Alberta; Canadá
Fil: Sandoval Garrido, N. A.. Universidad de Concepción; Chile
Fil: Svoboda, B.. Jansky fellow of the National Radio Astronomy Observatory; Estados Unidos
Fil: Tatematsu, K.. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; Japón
Fil: Walker, D. L.. University of Connecticut; Estados Unidos
Fil: Whitworth, A.. Cardiff University; Reino Unido
Fil: Wu, B.. Nvidia Corporation; Estados Unidos. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; Japón
Fil: Wyrowski, F.. Max Planck Institute For Radio Astronomy; Alemania
Materia
HII REGIONS
INSTRUMENTATION: INTERFEROMETERS
ISM: STRUCTURE
MASS FUNCTION
STARS: LUMINOSITY FUNCTION
STARS: PROTOSTARS
SUBMILLIMETER: ISM
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:11336/215894

id CONICETDig_e2f9acc6b655c856ce37ce75f3b0c2da
oai_identifier_str oai:ri.conicet.gov.ar:11336/215894
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processingGinsburg, A.Csengeri, T.Galván Madrid, R.Cunningham, N.Álvarez Gutiérrez, R. H.Baug, T.Bonfand, M.Bontemps, SophieBusquet, G.Díaz González, D. J.Fernandez Lopez, ManuelGuzmán, A.Herpin, F.Liu, H.López Sepulcre, A.Louvet, F.Maud, L.Motte, F.Nakamura, F.Nony, T.Olguin, F. A.Pouteau, Y.Rosolowsky, E.Sandoval Garrido, N. A.Svoboda, B.Tatematsu, K.Walker, D. L.Whitworth, A.Wu, B.Wyrowski, F.HII REGIONSINSTRUMENTATION: INTERFEROMETERSISM: STRUCTUREMASS FUNCTIONSTARS: LUMINOSITY FUNCTIONSTARS: PROTOSTARSSUBMILLIMETER: ISMhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We present the first data release of the ALMA-IMF Large Program, which covers the 12m-array continuum calibration and imaging. The ALMA-IMF Large Program is a survey of fifteen dense molecular cloud regions spanning a range of evolutionary stages that aims to measure the core mass function. We describe the data acquisition and calibration done by the Atacama Large Millimeter/submillimeter Array (ALMA) observatory and the subsequent calibration and imaging we performed. The image products are combinations of multiple 12 m array configurations created from a selection of the observed bandwidth using multi-term, multi-frequency synthesis imaging and deconvolution. The data products are self-calibrated and exhibit substantial noise improvements over the images produced from the delivered data. We compare different choices of continuum selection, calibration parameters, and image weighting parameters, demonstrating the utility and necessity of our additional processing work. Two variants of continuum selection are used and will be distributed: the 'best-sensitivity' (bsens) data, which include the full bandwidth, including bright emission lines that contaminate the continuum, and 'cleanest' (cleanest), which select portions of the spectrum that are unaffected by line emission. We present a preliminary analysis of the spectral indices of the continuum data, showing that the ALMA products are able to clearly distinguish free-free emission from dust emission, and that in some cases we are able to identify optically thick emission sources. The data products are made public with this release.Fil: Ginsburg, A.. University of Florida; Estados UnidosFil: Csengeri, T.. Universite de Bordeaux; FranciaFil: Galván Madrid, R.. Universidad Nacional Autónoma de México; MéxicoFil: Cunningham, N.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; FranciaFil: Álvarez Gutiérrez, R. H.. Universidad de Concepción; ChileFil: Baug, T.. S. N. Bose National Centre for Basic Sciences; IndiaFil: Bonfand, M.. Universite de Bordeaux; FranciaFil: Bontemps, Sophie. Universite de Bordeaux; FranciaFil: Busquet, G.. Universite Grenoble Alpes; Francia. Consejo Superior de Investigaciones Científicas; España. Institut d’Estudis Espacials de Catalunya; EspañaFil: Díaz González, D. J.. Universidad Nacional Autónoma de México; MéxicoFil: 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: Guzmán, A.. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; JapónFil: Herpin, F.. Universite de Bordeaux; FranciaFil: Liu, H.. Yunnan University; ChinaFil: López Sepulcre, A.. Iram Institut de Radioastronomie Millimétrique; Francia. Universite Grenoble Alpes; FranciaFil: Louvet, F.. Universidad de Chile; Chile. Universite Paris-Saclay; . Ecole Normale Supérieure; FranciaFil: Maud, L.. European Southern Observatory Chile; ChileFil: Motte, F.. Universite Grenoble Alpes; FranciaFil: Nakamura, F.. National Institutes Of Natural Sciences - National Astronomical Observatory Of Japan; Japón. The University Of Tokyo; Japón. The Graduate University For Advanced Studies; JapónFil: Nony, T.. Universidad Nacional Autónoma de México; MéxicoFil: Olguin, F. A.. National Tsing Hua University; ChinaFil: Pouteau, Y.. Universite Grenoble Alpes; FranciaFil: Rosolowsky, E.. University of Alberta; CanadáFil: Sandoval Garrido, N. A.. Universidad de Concepción; ChileFil: Svoboda, B.. Jansky fellow of the National Radio Astronomy Observatory; Estados UnidosFil: Tatematsu, K.. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; JapónFil: Walker, D. L.. University of Connecticut; Estados UnidosFil: Whitworth, A.. Cardiff University; Reino UnidoFil: Wu, B.. Nvidia Corporation; Estados Unidos. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; JapónFil: Wyrowski, F.. Max Planck Institute For Radio Astronomy; AlemaniaEDP Sciences2022-06info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/215894Ginsburg, A.; Csengeri, T.; Galván Madrid, R.; Cunningham, N.; Álvarez Gutiérrez, R. H.; et al.; ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing; EDP Sciences; Astronomy and Astrophysics; 662; A9; 6-2022; 1-410004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/202141681info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2022/06/aa41681-21/aa41681-21.htmlinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:30:22Zoai:ri.conicet.gov.ar:11336/215894instacron: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:34982025-10-22 11:30:22.985CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
title ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
spellingShingle ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
Ginsburg, A.
HII REGIONS
INSTRUMENTATION: INTERFEROMETERS
ISM: STRUCTURE
MASS FUNCTION
STARS: LUMINOSITY FUNCTION
STARS: PROTOSTARS
SUBMILLIMETER: ISM
title_short ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
title_full ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
title_fullStr ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
title_full_unstemmed ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
title_sort ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing
dc.creator.none.fl_str_mv Ginsburg, A.
Csengeri, T.
Galván Madrid, R.
Cunningham, N.
Álvarez Gutiérrez, R. H.
Baug, T.
Bonfand, M.
Bontemps, Sophie
Busquet, G.
Díaz González, D. J.
Fernandez Lopez, Manuel
Guzmán, A.
Herpin, F.
Liu, H.
López Sepulcre, A.
Louvet, F.
Maud, L.
Motte, F.
Nakamura, F.
Nony, T.
Olguin, F. A.
Pouteau, Y.
Rosolowsky, E.
Sandoval Garrido, N. A.
Svoboda, B.
Tatematsu, K.
Walker, D. L.
Whitworth, A.
Wu, B.
Wyrowski, F.
author Ginsburg, A.
author_facet Ginsburg, A.
Csengeri, T.
Galván Madrid, R.
Cunningham, N.
Álvarez Gutiérrez, R. H.
Baug, T.
Bonfand, M.
Bontemps, Sophie
Busquet, G.
Díaz González, D. J.
Fernandez Lopez, Manuel
Guzmán, A.
Herpin, F.
Liu, H.
López Sepulcre, A.
Louvet, F.
Maud, L.
Motte, F.
Nakamura, F.
Nony, T.
Olguin, F. A.
Pouteau, Y.
Rosolowsky, E.
Sandoval Garrido, N. A.
Svoboda, B.
Tatematsu, K.
Walker, D. L.
Whitworth, A.
Wu, B.
Wyrowski, F.
author_role author
author2 Csengeri, T.
Galván Madrid, R.
Cunningham, N.
Álvarez Gutiérrez, R. H.
Baug, T.
Bonfand, M.
Bontemps, Sophie
Busquet, G.
Díaz González, D. J.
Fernandez Lopez, Manuel
Guzmán, A.
Herpin, F.
Liu, H.
López Sepulcre, A.
Louvet, F.
Maud, L.
Motte, F.
Nakamura, F.
Nony, T.
Olguin, F. A.
Pouteau, Y.
Rosolowsky, E.
Sandoval Garrido, N. A.
Svoboda, B.
Tatematsu, K.
Walker, D. L.
Whitworth, A.
Wu, B.
Wyrowski, F.
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
author
author
author
dc.subject.none.fl_str_mv HII REGIONS
INSTRUMENTATION: INTERFEROMETERS
ISM: STRUCTURE
MASS FUNCTION
STARS: LUMINOSITY FUNCTION
STARS: PROTOSTARS
SUBMILLIMETER: ISM
topic HII REGIONS
INSTRUMENTATION: INTERFEROMETERS
ISM: STRUCTURE
MASS FUNCTION
STARS: LUMINOSITY FUNCTION
STARS: PROTOSTARS
SUBMILLIMETER: ISM
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We present the first data release of the ALMA-IMF Large Program, which covers the 12m-array continuum calibration and imaging. The ALMA-IMF Large Program is a survey of fifteen dense molecular cloud regions spanning a range of evolutionary stages that aims to measure the core mass function. We describe the data acquisition and calibration done by the Atacama Large Millimeter/submillimeter Array (ALMA) observatory and the subsequent calibration and imaging we performed. The image products are combinations of multiple 12 m array configurations created from a selection of the observed bandwidth using multi-term, multi-frequency synthesis imaging and deconvolution. The data products are self-calibrated and exhibit substantial noise improvements over the images produced from the delivered data. We compare different choices of continuum selection, calibration parameters, and image weighting parameters, demonstrating the utility and necessity of our additional processing work. Two variants of continuum selection are used and will be distributed: the 'best-sensitivity' (bsens) data, which include the full bandwidth, including bright emission lines that contaminate the continuum, and 'cleanest' (cleanest), which select portions of the spectrum that are unaffected by line emission. We present a preliminary analysis of the spectral indices of the continuum data, showing that the ALMA products are able to clearly distinguish free-free emission from dust emission, and that in some cases we are able to identify optically thick emission sources. The data products are made public with this release.
Fil: Ginsburg, A.. University of Florida; Estados Unidos
Fil: Csengeri, T.. Universite de Bordeaux; Francia
Fil: Galván Madrid, R.. Universidad Nacional Autónoma de México; México
Fil: Cunningham, N.. Universite Grenoble Alpes; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Álvarez Gutiérrez, R. H.. Universidad de Concepción; Chile
Fil: Baug, T.. S. N. Bose National Centre for Basic Sciences; India
Fil: Bonfand, M.. Universite de Bordeaux; Francia
Fil: Bontemps, Sophie. Universite de Bordeaux; Francia
Fil: Busquet, G.. Universite Grenoble Alpes; Francia. Consejo Superior de Investigaciones Científicas; España. Institut d’Estudis Espacials de Catalunya; España
Fil: Díaz González, D. J.. Universidad Nacional Autónoma de México; México
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: Guzmán, A.. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; Japón
Fil: Herpin, F.. Universite de Bordeaux; Francia
Fil: Liu, H.. Yunnan University; China
Fil: López Sepulcre, A.. Iram Institut de Radioastronomie Millimétrique; Francia. Universite Grenoble Alpes; Francia
Fil: Louvet, F.. Universidad de Chile; Chile. Universite Paris-Saclay; . Ecole Normale Supérieure; Francia
Fil: Maud, L.. European Southern Observatory Chile; Chile
Fil: Motte, F.. Universite Grenoble Alpes; Francia
Fil: Nakamura, F.. National Institutes Of Natural Sciences - National Astronomical Observatory Of Japan; Japón. The University Of Tokyo; Japón. The Graduate University For Advanced Studies; Japón
Fil: Nony, T.. Universidad Nacional Autónoma de México; México
Fil: Olguin, F. A.. National Tsing Hua University; China
Fil: Pouteau, Y.. Universite Grenoble Alpes; Francia
Fil: Rosolowsky, E.. University of Alberta; Canadá
Fil: Sandoval Garrido, N. A.. Universidad de Concepción; Chile
Fil: Svoboda, B.. Jansky fellow of the National Radio Astronomy Observatory; Estados Unidos
Fil: Tatematsu, K.. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; Japón
Fil: Walker, D. L.. University of Connecticut; Estados Unidos
Fil: Whitworth, A.. Cardiff University; Reino Unido
Fil: Wu, B.. Nvidia Corporation; Estados Unidos. National Institutes Of Natural Sciences. National Astronomical Observatory Of Japan; Japón
Fil: Wyrowski, F.. Max Planck Institute For Radio Astronomy; Alemania
description We present the first data release of the ALMA-IMF Large Program, which covers the 12m-array continuum calibration and imaging. The ALMA-IMF Large Program is a survey of fifteen dense molecular cloud regions spanning a range of evolutionary stages that aims to measure the core mass function. We describe the data acquisition and calibration done by the Atacama Large Millimeter/submillimeter Array (ALMA) observatory and the subsequent calibration and imaging we performed. The image products are combinations of multiple 12 m array configurations created from a selection of the observed bandwidth using multi-term, multi-frequency synthesis imaging and deconvolution. The data products are self-calibrated and exhibit substantial noise improvements over the images produced from the delivered data. We compare different choices of continuum selection, calibration parameters, and image weighting parameters, demonstrating the utility and necessity of our additional processing work. Two variants of continuum selection are used and will be distributed: the 'best-sensitivity' (bsens) data, which include the full bandwidth, including bright emission lines that contaminate the continuum, and 'cleanest' (cleanest), which select portions of the spectrum that are unaffected by line emission. We present a preliminary analysis of the spectral indices of the continuum data, showing that the ALMA products are able to clearly distinguish free-free emission from dust emission, and that in some cases we are able to identify optically thick emission sources. The data products are made public with this release.
publishDate 2022
dc.date.none.fl_str_mv 2022-06
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/11336/215894
Ginsburg, A.; Csengeri, T.; Galván Madrid, R.; Cunningham, N.; Álvarez Gutiérrez, R. H.; et al.; ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing; EDP Sciences; Astronomy and Astrophysics; 662; A9; 6-2022; 1-41
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/215894
identifier_str_mv Ginsburg, A.; Csengeri, T.; Galván Madrid, R.; Cunningham, N.; Álvarez Gutiérrez, R. H.; et al.; ALMA-IMF: II. Investigating the origin of stellar masses: Continuum images and data processing; EDP Sciences; Astronomy and Astrophysics; 662; A9; 6-2022; 1-41
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/doi/10.1051/0004-6361/202141681
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/articles/aa/full_html/2022/06/aa41681-21/aa41681-21.html
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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