Disk and envelope streamers of the GGD 27-MM1 massive protostar

We present new Atacama Large Millimeter/submillimeter Array 0.98 mm observations of the continuum emission and several molecular lines toward the high-mass protostellar system GGD 27-MM1, driving the HH 80-81 radio jet. The detailed analysis of the continuum and the CH3CN molecular emission allows u...

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Autores: Fernández-López, M., Girart, Josep Miquel, López-Vázquez, J.A., Estalella, Robert, Busquet Rico, Gemma, Curiel, S., Añez-López, N.
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Recursos:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/213434
Acesso em linha:https://hdl.handle.net/2445/213434
Access Level:acceso abierto
Palavra-chave:Matèria interstel·lar
Estels
Discos (Astrofísica)
Interstellar matter
Stars
Disks (Astrophysics)
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spelling Disk and envelope streamers of the GGD 27-MM1 massive protostarFernández-López, M.Girart, Josep MiquelLópez-Vázquez, J.A.Estalella, RobertBusquet Rico, GemmaCuriel, S.Añez-López, N.Matèria interstel·larEstelsDiscos (Astrofísica)Interstellar matterStarsDisks (Astrophysics)We present new Atacama Large Millimeter/submillimeter Array 0.98 mm observations of the continuum emission and several molecular lines toward the high-mass protostellar system GGD 27-MM1, driving the HH 80-81 radio jet. The detailed analysis of the continuum and the CH3CN molecular emission allows us to separate the contributions from the dust content of the disk (extending up to 190 au), the molecular content of the disk (extending from 140–360 au), and the content of the envelope, revealing the presence of several possible accretion streamers (also seen in other molecular tracers, such as CH3OH). We analyze the physical properties of the system, producing temperature and column density maps, and radial profiles for the disk and the envelope. We qualitatively reproduce the trajectories and line-of-sight velocities of the possible streamers using a theoretical model approach. An ad hoc model of a flared disk comprising a hot dust disk embedded in cold gas fits the H2S emission, which revealed the molecular disk as a crescent shape with a prominent central absorption. Another fit to the central absorption spectrum suggests that the absorption is probably caused by different external cold layers from the envelope or the accretion streamers. Finally, the analysis of the rotation pattern of the different molecular transitions in the molecular disk suggests that there is an inner zone devoid of molecular content.Institute of Physics (IOP)2024202420232024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion1 p.application/pdfhttps://hdl.handle.net/2445/213434Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.3847/1538-4357/ace786Astrophysical Journal, 2023, vol. 956, num.82https://doi.org/10.3847/1538-4357/ace786(c) American Astronomical Society, 2023info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2134342026-05-29T05:05:01Z
dc.title.none.fl_str_mv Disk and envelope streamers of the GGD 27-MM1 massive protostar
title Disk and envelope streamers of the GGD 27-MM1 massive protostar
spellingShingle Disk and envelope streamers of the GGD 27-MM1 massive protostar
Fernández-López, M.
Matèria interstel·lar
Estels
Discos (Astrofísica)
Interstellar matter
Stars
Disks (Astrophysics)
title_short Disk and envelope streamers of the GGD 27-MM1 massive protostar
title_full Disk and envelope streamers of the GGD 27-MM1 massive protostar
title_fullStr Disk and envelope streamers of the GGD 27-MM1 massive protostar
title_full_unstemmed Disk and envelope streamers of the GGD 27-MM1 massive protostar
title_sort Disk and envelope streamers of the GGD 27-MM1 massive protostar
dc.creator.none.fl_str_mv Fernández-López, M.
Girart, Josep Miquel
López-Vázquez, J.A.
Estalella, Robert
Busquet Rico, Gemma
Curiel, S.
Añez-López, N.
author Fernández-López, M.
author_facet Fernández-López, M.
Girart, Josep Miquel
López-Vázquez, J.A.
Estalella, Robert
Busquet Rico, Gemma
Curiel, S.
Añez-López, N.
author_role author
author2 Girart, Josep Miquel
López-Vázquez, J.A.
Estalella, Robert
Busquet Rico, Gemma
Curiel, S.
Añez-López, N.
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Matèria interstel·lar
Estels
Discos (Astrofísica)
Interstellar matter
Stars
Disks (Astrophysics)
topic Matèria interstel·lar
Estels
Discos (Astrofísica)
Interstellar matter
Stars
Disks (Astrophysics)
description We present new Atacama Large Millimeter/submillimeter Array 0.98 mm observations of the continuum emission and several molecular lines toward the high-mass protostellar system GGD 27-MM1, driving the HH 80-81 radio jet. The detailed analysis of the continuum and the CH3CN molecular emission allows us to separate the contributions from the dust content of the disk (extending up to 190 au), the molecular content of the disk (extending from 140–360 au), and the content of the envelope, revealing the presence of several possible accretion streamers (also seen in other molecular tracers, such as CH3OH). We analyze the physical properties of the system, producing temperature and column density maps, and radial profiles for the disk and the envelope. We qualitatively reproduce the trajectories and line-of-sight velocities of the possible streamers using a theoretical model approach. An ad hoc model of a flared disk comprising a hot dust disk embedded in cold gas fits the H2S emission, which revealed the molecular disk as a crescent shape with a prominent central absorption. Another fit to the central absorption spectrum suggests that the absorption is probably caused by different external cold layers from the envelope or the accretion streamers. Finally, the analysis of the rotation pattern of the different molecular transitions in the molecular disk suggests that there is an inner zone devoid of molecular content.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/213434
url https://hdl.handle.net/2445/213434
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.3847/1538-4357/ace786
Astrophysical Journal, 2023, vol. 956, num.82
https://doi.org/10.3847/1538-4357/ace786
dc.rights.none.fl_str_mv (c) American Astronomical Society, 2023
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Astronomical Society, 2023
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1 p.
application/pdf
dc.publisher.none.fl_str_mv Institute of Physics (IOP)
publisher.none.fl_str_mv Institute of Physics (IOP)
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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