Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI

We have observed the late Class I protostellar source Elias 29 at a spatial resolution of 70 au with the Atacama Large Millimeter/submillimeter Array as part of the FAUST Large Program. We focus on the line emission of SO, while that of <sup>34</sup>SO, C<sup>18</sup>O, CS, S...

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Autores: Oya, Yoko, Saiga, Eri, Miotello, Anna, Koutoulaki, Maria, Johnstone, Doug, Ceccarelli, Cecilia, Chandler, Claire J., Codella, Claudio, Sakai, Nami, Bianchi, Eleonora, Bouvier, Mathilde, Charnley, Steven, Busquet Rico, Gemma, et al.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2025
País:España
Institución: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:2445/224949
Acceso en línea:https://hdl.handle.net/2445/224949
Access Level:acceso abierto
Palabra clave:Formació d'estels
Astronomia
Estels
Star formation
Astronomy
Stars
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repository_id_str
spelling Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXIOya, YokoSaiga, EriMiotello, AnnaKoutoulaki, MariaJohnstone, DougCeccarelli, CeciliaChandler, Claire J.Codella, ClaudioSakai, NamiBianchi, EleonoraBouvier, MathildeCharnley, StevenBusquet Rico, Gemmaet al.Formació d'estelsAstronomiaEstelsStar formationAstronomyStarsWe have observed the late Class I protostellar source Elias 29 at a spatial resolution of 70 au with the Atacama Large Millimeter/submillimeter Array as part of the FAUST Large Program. We focus on the line emission of SO, while that of <sup>34</sup>SO, C<sup>18</sup>O, CS, SiO, H<sup>13</sup>CO<sup>+</sup>, and DCO<sup>+</sup> are used supplementarily. The spatial distribution of the SO rotational temperature (T<sub>rot</sub>(SO)) is evaluated by using the intensity ratio of its two rotational excitation lines. Besides in the vicinity of the protostar, two hot spots are found at a distance of 500 au from the protostar; T<sub>rot</sub>(SO) locally rises to 53 K at the interaction point of the outflow and the southern ridge, and 72 K within the southeastern outflow probably due to a jet-driven bow shock. However, the SiO emission is not detected at these hot spots. It is likely that active gas accretion through the disk-like structure and onto the protostar still continues even at this evolved protostellar stage, at least sporadically, considering the outflow/jet activities and the possible infall motion previously reported. Interestingly, T<sub>rot</sub>(SO) is as high as 20–30 K even within the quiescent part of the southern ridge apart from the protostar by 500–1000 au without clear kinematic indication of current outflow/jet interactions. Such a warm condition is also supported by the low deuterium fractionation ratio of HCO<sup>+</sup> estimated by using the H<sup>13</sup>CO<sup>+</sup> and DCO<sup>+</sup> lines. The B-type star HD147889 ∼0.5 pc away from Elias 29, previously suggested as a heating source for this region, is likely responsible for the warm condition of Elias 29.Institute of Physics (IOP)2025202520252025info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion17 p.application/pdfhttps://hdl.handle.net/2445/224949Articles 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/adabe7Astrophysical Journal, 2025, vol. 980, num.2https://doi.org/10.3847/1538-4357/adabe7(c) American Astronomical Society, 2025info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2249492026-05-29T05:05:01Z
dc.title.none.fl_str_mv Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
title Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
spellingShingle Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
Oya, Yoko
Formació d'estels
Astronomia
Estels
Star formation
Astronomy
Stars
title_short Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
title_full Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
title_fullStr Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
title_full_unstemmed Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
title_sort Evidence for Jet/Outflow Shocks Heating the Environment around the Class I Protostellar Source Elias 29: FAUST XXI
dc.creator.none.fl_str_mv Oya, Yoko
Saiga, Eri
Miotello, Anna
Koutoulaki, Maria
Johnstone, Doug
Ceccarelli, Cecilia
Chandler, Claire J.
Codella, Claudio
Sakai, Nami
Bianchi, Eleonora
Bouvier, Mathilde
Charnley, Steven
Busquet Rico, Gemma
et al.
author Oya, Yoko
author_facet Oya, Yoko
Saiga, Eri
Miotello, Anna
Koutoulaki, Maria
Johnstone, Doug
Ceccarelli, Cecilia
Chandler, Claire J.
Codella, Claudio
Sakai, Nami
Bianchi, Eleonora
Bouvier, Mathilde
Charnley, Steven
Busquet Rico, Gemma
et al.
author_role author
author2 Saiga, Eri
Miotello, Anna
Koutoulaki, Maria
Johnstone, Doug
Ceccarelli, Cecilia
Chandler, Claire J.
Codella, Claudio
Sakai, Nami
Bianchi, Eleonora
Bouvier, Mathilde
Charnley, Steven
Busquet Rico, Gemma
et al.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Formació d'estels
Astronomia
Estels
Star formation
Astronomy
Stars
topic Formació d'estels
Astronomia
Estels
Star formation
Astronomy
Stars
description We have observed the late Class I protostellar source Elias 29 at a spatial resolution of 70 au with the Atacama Large Millimeter/submillimeter Array as part of the FAUST Large Program. We focus on the line emission of SO, while that of <sup>34</sup>SO, C<sup>18</sup>O, CS, SiO, H<sup>13</sup>CO<sup>+</sup>, and DCO<sup>+</sup> are used supplementarily. The spatial distribution of the SO rotational temperature (T<sub>rot</sub>(SO)) is evaluated by using the intensity ratio of its two rotational excitation lines. Besides in the vicinity of the protostar, two hot spots are found at a distance of 500 au from the protostar; T<sub>rot</sub>(SO) locally rises to 53 K at the interaction point of the outflow and the southern ridge, and 72 K within the southeastern outflow probably due to a jet-driven bow shock. However, the SiO emission is not detected at these hot spots. It is likely that active gas accretion through the disk-like structure and onto the protostar still continues even at this evolved protostellar stage, at least sporadically, considering the outflow/jet activities and the possible infall motion previously reported. Interestingly, T<sub>rot</sub>(SO) is as high as 20–30 K even within the quiescent part of the southern ridge apart from the protostar by 500–1000 au without clear kinematic indication of current outflow/jet interactions. Such a warm condition is also supported by the low deuterium fractionation ratio of HCO<sup>+</sup> estimated by using the H<sup>13</sup>CO<sup>+</sup> and DCO<sup>+</sup> lines. The B-type star HD147889 ∼0.5 pc away from Elias 29, previously suggested as a heating source for this region, is likely responsible for the warm condition of Elias 29.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025
2025
2025
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/2445/224949
url https://hdl.handle.net/2445/224949
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/adabe7
Astrophysical Journal, 2025, vol. 980, num.2
https://doi.org/10.3847/1538-4357/adabe7
dc.rights.none.fl_str_mv (c) American Astronomical Society, 2025
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) American Astronomical Society, 2025
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 17 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
_version_ 1869416981799632896
score 15,81155

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