Mostrar el registro sencillo del ítem
dc.contributor.author
Montoro Molina, B
dc.contributor.author
Guerrero, M. A.
dc.contributor.author
Perez Díaz, B.
dc.contributor.author
Toalá, J. A.
dc.contributor.author
Cazzoli, S.
dc.contributor.author
Miller Bertolami, Marcelo Miguel
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.contributor.author
Morisset, C.
dc.date.available
2023-09-08T11:33:36Z
dc.date.issued
2022-05
dc.identifier.citation
Montoro Molina, B; Guerrero, M. A.; Perez Díaz, B.; Toalá, J. A.; Cazzoli, S.; et al.; Chemistry and physical properties of the born-Again planetary nebula HuBi 1; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 512; 3; 5-2022; 4003-4020
dc.identifier.issn
0035-8711
dc.identifier.uri
http://hdl.handle.net/11336/210870
dc.description.abstract
The central star of the planetary nebula (PN) HuBi 1 has been recently proposed to have experienced a very late thermal pulse (VLTP), but the dilution of the emission of the recent ejecta by that of the surrounding H-rich old outer shell has so far hindered confirming its suspected H-poor nature. We present here an analysis of the optical properties of the ejecta in the innermost regions of HuBi 1 using MEGARA high-dispersion integral field and OSIRIS intermediate-dispersion long-slit spectroscopic observations obtained with the 10.4-m Gran Telescopio de Canarias. The unprecedented tomographic capability of MEGARA to resolve structures in velocity space allowed us to disentangle for the first time the Hα and Hβ emission of the recent ejecta from that of the outer shell. The recent ejecta is found to have much higher extinction than the outer shell, implying the presence of large amounts of dust. The spatial distribution of the emission from the ejecta and the locus of key line ratios in diagnostic diagrams probe the shock excitation of the inner ejecta in HuBi 1, in stark contrast with the photoionization nature of the H-rich outer shell. The abundances of the recent ejecta have been computed using the mappings v code under a shock scenario. They are found to be consistent with a born-Again ejection scenario experienced by the progenitor star, which is thus firmly confirmed as a new 'born-Again' star.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
ISM: JETS AND OUTFLOWS
dc.subject
PLANETARY NEBULAE: GENERAL
dc.subject
PLANETARY NEBULAE: INDIVIDUAL (HUBI 1)
dc.subject
STARS: EVOLUTION
dc.subject
STARS: WINDS, OUTFLOWS
dc.subject.classification
Astronomía
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
Ciencias Físicas
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.title
Chemistry and physical properties of the born-Again planetary nebula HuBi 1
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-09-05T18:03:54Z
dc.journal.volume
512
dc.journal.number
3
dc.journal.pagination
4003-4020
dc.journal.pais
Reino Unido
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.journal.ciudad
Londres
dc.description.fil
Fil: Montoro Molina, B. Consejo Superior de Investigaciones Científicas; España
dc.description.fil
Fil: Guerrero, M. A.. Consejo Superior de Investigaciones Científicas; España
dc.description.fil
Fil: Perez Díaz, B.. Consejo Superior de Investigaciones Científicas; España
dc.description.fil
Fil: Toalá, J. A.. Universidad Nacional Autónoma de México; México
dc.description.fil
Fil: Cazzoli, S.. Consejo Superior de Investigaciones Científicas; España
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: Morisset, C.. Universidad Nacional Autónoma de México; México
dc.journal.title
Monthly Notices of the Royal Astronomical Society
![Se ha confirmado la validez de este valor de autoridad por un usuario](/themes/CONICETDigital/images/authority_control/invisible.gif)
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article/512/3/4003/6527589
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/mnras/stac336
Archivos asociados