NGC 6778: A disrupted planetary nebula around a binary central star

The planetary nebula (PN) NGC 6778 harbors a binary central star with a short orbital period and displays two systems of fast collimated outflows. To assess the influence of the evolution through a common-envelope phase of the binary system of NGC 6778 on its formation and shaping, we have used narr...

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Autores: Guerrero, Martín A., Miranda, Luis F.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2012
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/421924
Acesso em linha:http://hdl.handle.net/10261/421924
Access Level:Acceso aberto
Palavra-chave:Planetary nebulae: general
Planetary nebulae: individual: NGC 6778
ISM: jets and outflows
Binaries: close
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spelling NGC 6778: A disrupted planetary nebula around a binary central starGuerrero, Martín A.Miranda, Luis F.Planetary nebulae: generalPlanetary nebulae: individual: NGC 6778ISM: jets and outflowsBinaries: closeThe planetary nebula (PN) NGC 6778 harbors a binary central star with a short orbital period and displays two systems of fast collimated outflows. To assess the influence of the evolution through a common-envelope phase of the binary system of NGC 6778 on its formation and shaping, we have used narrow-band images and high-dispersion long-slit spectra of the nebula to investigate its detailed morphology and kinematics. We find that the overall structure of NGC 6778 can be described as a bipolar PN. The equatorial ring is highly disrupted and many radial features (filamentary wisps and cometary knots) also show strong dynamical effects. There are clear connections between the bipolar lobes and the fast collimated outflows: the collimated outflows seem to arise from bright knots at the tips of the bipolar lobes, whereas the kinematics of the bipolar lobes is distorted. We suggest that the interaction of the fast collimated outflows of NGC 6778 with its nebular envelope has resulted in the disruption of the nebular shell and equatorial ring. © 2012 ESO.Part of this work was supported by projects AYA2008-01934 and AYA2011-29754-C03-02 of the Spanish MICINN (co-funded by FEDER funds). L.F.M. acknowledges partial support from INCITE09 E1R312096, INCITE09 312191PR, and IN8458-2010/061 of Xunta de Galicia (co-funded by FEDER funds). We thank the group of support astronomers of the Instituto de Astrofísica de Canarias (IAC) for making available the narrow-band filters used at the NOT observations. We also thank G. Ramos-Larios for his assistance during the 2008 August NOT run and for the preparation of the color picture of NGC 6778.Peer reviewedEDP SciencesMinisterio de Ciencia e Innovación (España)Ministerio de Economía y Competitividad (España)European CommissionXunta de GaliciaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202620262012info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/421924reponame: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/MICINN//AYA2008-01934info:eu-repo/grantAgreement/MINECO//AYA2011-29754-C03-02http://dx.doi.org/10.1051/0004-6361/201117923Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4219242026-05-22T06:33:51Z
dc.title.none.fl_str_mv NGC 6778: A disrupted planetary nebula around a binary central star
title NGC 6778: A disrupted planetary nebula around a binary central star
spellingShingle NGC 6778: A disrupted planetary nebula around a binary central star
Guerrero, Martín A.
Planetary nebulae: general
Planetary nebulae: individual: NGC 6778
ISM: jets and outflows
Binaries: close
title_short NGC 6778: A disrupted planetary nebula around a binary central star
title_full NGC 6778: A disrupted planetary nebula around a binary central star
title_fullStr NGC 6778: A disrupted planetary nebula around a binary central star
title_full_unstemmed NGC 6778: A disrupted planetary nebula around a binary central star
title_sort NGC 6778: A disrupted planetary nebula around a binary central star
dc.creator.none.fl_str_mv Guerrero, Martín A.
Miranda, Luis F.
author Guerrero, Martín A.
author_facet Guerrero, Martín A.
Miranda, Luis F.
author_role author
author2 Miranda, Luis F.
author2_role author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
Ministerio de Economía y Competitividad (España)
European Commission
Xunta de Galicia
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Planetary nebulae: general
Planetary nebulae: individual: NGC 6778
ISM: jets and outflows
Binaries: close
topic Planetary nebulae: general
Planetary nebulae: individual: NGC 6778
ISM: jets and outflows
Binaries: close
description The planetary nebula (PN) NGC 6778 harbors a binary central star with a short orbital period and displays two systems of fast collimated outflows. To assess the influence of the evolution through a common-envelope phase of the binary system of NGC 6778 on its formation and shaping, we have used narrow-band images and high-dispersion long-slit spectra of the nebula to investigate its detailed morphology and kinematics. We find that the overall structure of NGC 6778 can be described as a bipolar PN. The equatorial ring is highly disrupted and many radial features (filamentary wisps and cometary knots) also show strong dynamical effects. There are clear connections between the bipolar lobes and the fast collimated outflows: the collimated outflows seem to arise from bright knots at the tips of the bipolar lobes, whereas the kinematics of the bipolar lobes is distorted. We suggest that the interaction of the fast collimated outflows of NGC 6778 with its nebular envelope has resulted in the disruption of the nebular shell and equatorial ring. © 2012 ESO.
publishDate 2012
dc.date.none.fl_str_mv 2012
2026
2026
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/10261/421924
url http://hdl.handle.net/10261/421924
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/MICINN//AYA2008-01934
info:eu-repo/grantAgreement/MINECO//AYA2011-29754-C03-02
http://dx.doi.org/10.1051/0004-6361/201117923
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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
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