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dc.contributor.author
Guerrero, Martín A.
dc.contributor.author
Fang, Xuan
dc.contributor.author
Miller Bertolami, Marcelo Miguel
dc.contributor.author
Ramos Larios, Gerardo
dc.contributor.author
Todt, Helge
dc.contributor.author
Alarie, Alexandre
dc.contributor.author
Sabin, Laurence
dc.contributor.author
Miranda, Luis F.
dc.contributor.author
Morisset, Christophe
dc.contributor.author
Kehrig, Carolina
dc.contributor.author
Zavala, Saúl A.
dc.date.available
2019-08-30T18:04:04Z
dc.date.issued
2018-01
dc.identifier.citation
Guerrero, Martín A.; Fang, Xuan; Miller Bertolami, Marcelo Miguel; Ramos Larios, Gerardo; Todt, Helge; et al.; The inside-out planetary nebula around a born-again star; Nature Publishing Group; Nature Astronomy; 2; 10; 1-2018; 784-789
dc.identifier.issn
2397-3366
dc.identifier.uri
http://hdl.handle.net/11336/82611
dc.description.abstract
Planetary nebulae are ionized clouds of gas formed by the hydrogen-rich envelopes of low- and intermediate-mass stars ejected at late evolutionary stages. The strong UV flux from their central stars causes a highly stratified ionization structure, with species of higher ionization potential closer to the star. Here, we report on the exceptional case of HuBi 1, a double-shell planetary nebula whose inner shell presents emission from low-ionization species close to the star and emission from high-ionization species farther away. Spectral analysis demonstrates that the inner shell of HuBi 1 is excited by shocks, whereas its outer shell is recombining. The anomalous excitation of these shells can be traced to its low-temperature [WC10] central star whose optical brightness has declined continuously by 10 magnitudes in a period of 46 years. Evolutionary models reveal that this star is the descendant of a low-mass star (≃1.1 M⊙) that has experienced a ‘born-again’ event1 whose ejecta shock-excite the inner shell. HuBi 1 represents the missing link in the formation of metal-rich central stars of planetary nebulae from low-mass progenitors, offering unique insight regarding the future evolution of the born-again Sakurai’s object2. Coming from a solar-mass progenitor, HuBi 1 represents a potential end-state for our Sun.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Nature Publishing Group
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Planetary Nebulae
dc.subject
Stars
dc.subject.classification
Astronomía
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Ciencias Físicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The inside-out planetary nebula around a born-again star
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-08-28T17:58:21Z
dc.journal.volume
2
dc.journal.number
10
dc.journal.pagination
784-789
dc.journal.pais
Reino Unido
dc.description.fil
Fil: Guerrero, Martín A.. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Fang, Xuan. Unversity of Hong Kong; China
dc.description.fil
Fil: Miller Bertolami, Marcelo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
dc.description.fil
Fil: Ramos Larios, Gerardo. Instituto de Astronomía y Meteorologia de la Universidad de Guadalajara; México
dc.description.fil
Fil: Todt, Helge. Universitat Potsdam; Alemania
dc.description.fil
Fil: Alarie, Alexandre. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Sabin, Laurence. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Miranda, Luis F.. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Morisset, Christophe. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Kehrig, Carolina. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Zavala, Saúl A.. Departamento de Ciencias Básicas; México
dc.journal.title
Nature Astronomy
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1038/s41550-018-0551-8
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41550-018-0551-8
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