ALMA imaging of the nascent planetary nebula IRAS 15103-5754

We present continuum and molecular-line (CO, C18O, HCO+) observations carried out with the Atacama Large Millimeter/submillimeter Array toward the 'water fountain' star IRAS 15103-5754, an object that could be the youngest planetary nebula (PN) known. We detect two continuum sources, separ...

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Detalles Bibliográficos
Autores: Gómez, José F., Niccolini, Gilles, Suárez, O., Miranda, Luis F., Rizzo, José Ricardo, Uscanga, Lucero, Green, James A., de Gregorio-Monsalvo, Itziar
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/194620
Acceso en línea:http://hdl.handle.net/10261/194620
Access Level:acceso abierto
Palabra clave:Stars: winds, outflows
Planetary nebulae: general
Planetary nebulae: individual: IRAS 15103-5754
Stars: AGB and post-AGB
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network_name_str España
repository_id_str
dc.title.none.fl_str_mv ALMA imaging of the nascent planetary nebula IRAS 15103-5754
title ALMA imaging of the nascent planetary nebula IRAS 15103-5754
spellingShingle ALMA imaging of the nascent planetary nebula IRAS 15103-5754
Gómez, José F.
Stars: winds, outflows
Planetary nebulae: general
Planetary nebulae: individual: IRAS 15103-5754
Stars: AGB and post-AGB
title_short ALMA imaging of the nascent planetary nebula IRAS 15103-5754
title_full ALMA imaging of the nascent planetary nebula IRAS 15103-5754
title_fullStr ALMA imaging of the nascent planetary nebula IRAS 15103-5754
title_full_unstemmed ALMA imaging of the nascent planetary nebula IRAS 15103-5754
title_sort ALMA imaging of the nascent planetary nebula IRAS 15103-5754
dc.creator.none.fl_str_mv Gómez, José F.
Niccolini, Gilles
Suárez, O.
Miranda, Luis F.
Rizzo, José Ricardo
Uscanga, Lucero
Green, James A.
de Gregorio-Monsalvo, Itziar
author Gómez, José F.
author_facet Gómez, José F.
Niccolini, Gilles
Suárez, O.
Miranda, Luis F.
Rizzo, José Ricardo
Uscanga, Lucero
Green, James A.
de Gregorio-Monsalvo, Itziar
author_role author
author2 Niccolini, Gilles
Suárez, O.
Miranda, Luis F.
Rizzo, José Ricardo
Uscanga, Lucero
Green, James A.
de Gregorio-Monsalvo, Itziar
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Guanajuato
Ministerio de Educación, Cultura y Deporte (España)
Ministerio de Economía, Industria y Competitividad (España)
Ministerio de Economía y Competitividad (España)
European Commission
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Stars: winds, outflows
Planetary nebulae: general
Planetary nebulae: individual: IRAS 15103-5754
Stars: AGB and post-AGB
topic Stars: winds, outflows
Planetary nebulae: general
Planetary nebulae: individual: IRAS 15103-5754
Stars: AGB and post-AGB
description We present continuum and molecular-line (CO, C18O, HCO+) observations carried out with the Atacama Large Millimeter/submillimeter Array toward the 'water fountain' star IRAS 15103-5754, an object that could be the youngest planetary nebula (PN) known. We detect two continuum sources, separated by 0.39 ±0.03 arcsec. The emission from the brighter source seems to arise mainly from ionized gas, thus confirming the PN nature of the object. The molecular-line emission is dominated by a circumstellar torus with a diameter of ~0.6 arcsec (2000 au) and expanding at ~23 km s -1 . We see at least two gas outflows. The highestvelocity outflow (deprojected velocities up to 250 km s -1 ), traced by the CO lines, shows a biconical morphology, whose axis is misaligned ~14° with respect to the symmetry axis of the torus, and with a different central velocity (by ~8 km s -1 ). An additional high-density outflow (traced by HCO+) is oriented nearly perpendicular to the torus. We speculate that IRAS 15103-5754 was a triple stellar system that went through a common envelope phase, and one of the components was ejected in this process. A subsequent low-collimation wind from the remaining binary stripped out gas from the torus, creating the conical outflow. The high velocity of the outflow suggests that the momentum transfer from the wind is extremely efficient, or that we are witnessing a very energetic mass-loss event. © 2018 The Author(s).
publishDate 2018
dc.date.none.fl_str_mv 2018
2019
2019
2019
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/10261/194620
url http://hdl.handle.net/10261/194620
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-84390-C2-1-R
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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dc.publisher.none.fl_str_mv Blackwell Publishing
publisher.none.fl_str_mv Blackwell Publishing
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
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spelling ALMA imaging of the nascent planetary nebula IRAS 15103-5754Gómez, José F.Niccolini, GillesSuárez, O.Miranda, Luis F.Rizzo, José RicardoUscanga, LuceroGreen, James A.de Gregorio-Monsalvo, ItziarStars: winds, outflowsPlanetary nebulae: generalPlanetary nebulae: individual: IRAS 15103-5754Stars: AGB and post-AGBWe present continuum and molecular-line (CO, C18O, HCO+) observations carried out with the Atacama Large Millimeter/submillimeter Array toward the 'water fountain' star IRAS 15103-5754, an object that could be the youngest planetary nebula (PN) known. We detect two continuum sources, separated by 0.39 ±0.03 arcsec. The emission from the brighter source seems to arise mainly from ionized gas, thus confirming the PN nature of the object. The molecular-line emission is dominated by a circumstellar torus with a diameter of ~0.6 arcsec (2000 au) and expanding at ~23 km s -1 . We see at least two gas outflows. The highestvelocity outflow (deprojected velocities up to 250 km s -1 ), traced by the CO lines, shows a biconical morphology, whose axis is misaligned ~14° with respect to the symmetry axis of the torus, and with a different central velocity (by ~8 km s -1 ). An additional high-density outflow (traced by HCO+) is oriented nearly perpendicular to the torus. We speculate that IRAS 15103-5754 was a triple stellar system that went through a common envelope phase, and one of the components was ejected in this process. A subsequent low-collimation wind from the remaining binary stripped out gas from the torus, creating the conical outflow. The high velocity of the outflow suggests that the momentum transfer from the wind is extremely efficient, or that we are witnessing a very energetic mass-loss event. © 2018 The Author(s).JFG and LFM are supported by Ministerio de Economia, Industria y Competitividad (MINECO, Spain) grants AYA2014-57369-C3-3 and AYA2017-84390-C2-1-R (co-funded by FEDER). JFG also acknowledges the support of Ministerio de Educacion, Cultura y Deporte (Spain), under the mobility programme for senior scientists at foreign universities and research centres, as well as the hospitality of Universite Cote d'Azur/Laboratoire Lagrange during the preparation of this paper. JRR is supported by grant ESP2015-65597-C4-1-R (MINECO/FEDER). LU acknowledges support from the University of Guanajuato (Mexico) grant ID CIIC 17/2018, and from PRODEP (Mexico). This paper makes use of the following ALMA data: ADS/JAO.ALMA#2015.1.00777.S. ALMA is a partnership of the European Southern Observatory (ESO; representing its member states), the National Science Foundation (USA) and the National Institutes of Natural Sciences (Japan), together with the National Research Council (Canada), the National Science Council and the Academia Sinica Institute of Astronomy and Astrophysics (Taiwan) and the Korea Astronomy and Space Science Institute (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by the ESO, the Associated Universities, Inc./National Radio Astronomy Observatory and the National Astronomical Observatory of Japan.Peer ReviewedBlackwell PublishingUniversidad de GuanajuatoMinisterio de Educación, Cultura y Deporte (España)Ministerio de Economía, Industria y Competitividad (España)Ministerio de Economía y Competitividad (España)European CommissionConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2019201920182019info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/194620reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2014-57369-C3-3info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-84390-C2-1-Rinfo:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/ESP2015-65597-C4-1-Rhttp://dx.doi.org/10.1093/mnras/sty2193Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1946202026-05-22T06:33:51Z
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