Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78

We present the analysis of spatially resolved spectroscopic observations of the born-again planetary nebula (PN) A 78 that are used to investigate the chemistry and physical properties of its three main morphological components, namely the inner knots, its eye-like structure, and the low surface-bri...

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Detalhes bibliográficos
Autores: Montoro-Molina, B., Guerrero, Martín A., Toalá, Jesús A.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2023
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/356471
Acesso em linha:http://hdl.handle.net/10261/356471
Access Level:Acceso aberto
Palavra-chave:(ISM:) planetary nebulae: individual: PN A66 78
(stars:) circumstellar matter
Stars: evolution
Stars: mass-loss
Stars: winds, outflows
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spelling Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78Montoro-Molina, B.Guerrero, Martín A.Toalá, Jesús A.(ISM:) planetary nebulae: individual: PN A66 78(stars:) circumstellar matterStars: evolutionStars: mass-lossStars: winds, outflowsWe present the analysis of spatially resolved spectroscopic observations of the born-again planetary nebula (PN) A 78 that are used to investigate the chemistry and physical properties of its three main morphological components, namely the inner knots, its eye-like structure, and the low surface-brightness outer nebula. The H-poor chemical abundances of the inner knots confirm the born-again nature of A 78, with an N/O abundances ratio consistent with the predictions of very late thermal pulses (VLTP). On the other hand, the high Ne/O is not expected in VLTP events, which prompts a possible different evolutionary path may be involving a binary system. The low N/O ratio and He/H abundances of the outer shell are indicative of a low-mass progenitor, whereas the chemical abundances of the eye-like structure, which results from the interaction between the H-poor born-again material and the outer nebula, evidence their mixture. Unlike previous works, the extinction is found to be inhomogeneous, being much higher towards the H-poor inner knots, where the presence of large amounts of C-rich dust has been previously reported. Dust-rich material seems to diffuse into outer nebular regions, resulting in zones of enhanced extinction. © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.BMM and MAG are funded by grant PGC2018-102184-B-I00 of the Ministerio de Educacion, Innovacion y Universidades cofunded with FEDER funds. JAT thanks Direccion General de Asuntos del Personal Academico (DGAPA) of the Universidad Nacional Autonoma de Mexico (UNAM, Mexico) project IA101622 and the Visiting-Incoming programme of the IAA-CSIC supported by the State Agency for Research of the Spanish MCIU through the Center of Excellence Severo Ochoa award to the Instituto de Astrofisica de Andalucia (SEV-2017-0709) through the Centro de Excelencia Severo Ochoa (Spain). This work has made extensive use of NASA's Astrophysics Data System (ADS).Peer reviewedOxford University PressMinisterio de Ciencia, Innovación y Universidades (España)European CommissionUniversidad Nacional Autónoma de MéxicoConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420232024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/356471reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-102184-B-I00info:eu-repo/grantAgreement/AEI//SEV-2017-0709http://dx.doi.org/10.1093/mnras/stad2803Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3564712026-05-22T06:33:51Z
dc.title.none.fl_str_mv Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
title Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
spellingShingle Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
Montoro-Molina, B.
(ISM:) planetary nebulae: individual: PN A66 78
(stars:) circumstellar matter
Stars: evolution
Stars: mass-loss
Stars: winds, outflows
title_short Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
title_full Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
title_fullStr Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
title_full_unstemmed Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
title_sort Spatially resolved spectroscopic investigation of the born-again planetary nebula A 78
dc.creator.none.fl_str_mv Montoro-Molina, B.
Guerrero, Martín A.
Toalá, Jesús A.
author Montoro-Molina, B.
author_facet Montoro-Molina, B.
Guerrero, Martín A.
Toalá, Jesús A.
author_role author
author2 Guerrero, Martín A.
Toalá, Jesús A.
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
European Commission
Universidad Nacional Autónoma de México
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv (ISM:) planetary nebulae: individual: PN A66 78
(stars:) circumstellar matter
Stars: evolution
Stars: mass-loss
Stars: winds, outflows
topic (ISM:) planetary nebulae: individual: PN A66 78
(stars:) circumstellar matter
Stars: evolution
Stars: mass-loss
Stars: winds, outflows
description We present the analysis of spatially resolved spectroscopic observations of the born-again planetary nebula (PN) A 78 that are used to investigate the chemistry and physical properties of its three main morphological components, namely the inner knots, its eye-like structure, and the low surface-brightness outer nebula. The H-poor chemical abundances of the inner knots confirm the born-again nature of A 78, with an N/O abundances ratio consistent with the predictions of very late thermal pulses (VLTP). On the other hand, the high Ne/O is not expected in VLTP events, which prompts a possible different evolutionary path may be involving a binary system. The low N/O ratio and He/H abundances of the outer shell are indicative of a low-mass progenitor, whereas the chemical abundances of the eye-like structure, which results from the interaction between the H-poor born-again material and the outer nebula, evidence their mixture. Unlike previous works, the extinction is found to be inhomogeneous, being much higher towards the H-poor inner knots, where the presence of large amounts of C-rich dust has been previously reported. Dust-rich material seems to diffuse into outer nebular regions, resulting in zones of enhanced extinction. © 2023 The Author(s). Published by Oxford University Press on behalf of Royal Astronomical Society.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/356471
url http://hdl.handle.net/10261/356471
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
#PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PGC2018-102184-B-I00
info:eu-repo/grantAgreement/AEI//SEV-2017-0709
http://dx.doi.org/10.1093/mnras/stad2803
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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