The rapid evolution of the central star of the Stingray Nebula - latest news from the HST

Autores
Reindl, Nicole; Rauch, Thomas; Miller Bertolami, Marcelo Miguel; Werner, Klaus
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
SAO 244567 is an unusually fast evolving star. Within twenty years only, it had turned from a B-type supergiant into the central star of the Stingray Nebula. Space- and ground-based observations obtained over the last decades have revealed that its spectrum changes noticeably over just a few years, showing stellar evolution in real time. The low mass of SAO 244567 is, however, in strong contradiction with canonical post-asymptotic giant branch evolution. Thus, its fast evolution has been a mystery for decades. We present preliminary results of the non-LTE spectral analyis of the recently obtained HST/COS observations, which finally allow us to shed light on the evolutionary history of this extraordinary object.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
Materia
Ciencias Astronómicas
Central star
Stingray Nebula
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/3.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/87018
Acceder
id SEDICI_d9d8a6c88a17e75549477657a8d3d77a
oai_identifier_str oai:sedici.unlp.edu.ar:10915/87018
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling The rapid evolution of the central star of the Stingray Nebula - latest news from the HSTReindl, NicoleRauch, ThomasMiller Bertolami, Marcelo MiguelWerner, KlausCiencias AstronómicasCentral starStingray NebulaSAO 244567 is an unusually fast evolving star. Within twenty years only, it had turned from a B-type supergiant into the central star of the Stingray Nebula. Space- and ground-based observations obtained over the last decades have revealed that its spectrum changes noticeably over just a few years, showing stellar evolution in real time. The low mass of SAO 244567 is, however, in strong contradiction with canonical post-asymptotic giant branch evolution. Thus, its fast evolution has been a mystery for decades. We present preliminary results of the non-LTE spectral analyis of the recently obtained HST/COS observations, which finally allow us to shed light on the evolutionary history of this extraordinary object.Facultad de Ciencias Astronómicas y GeofísicasInstituto de Astrofísica de La Plata2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/87018enginfo:eu-repo/semantics/altIdentifier/issn/1742-6588info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/728/3/032006info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/Creative Commons Attribution 3.0 Unported (CC BY 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-22T16:57:33Zoai:sedici.unlp.edu.ar:10915/87018Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-22 16:57:33.499SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
title The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
spellingShingle The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
Reindl, Nicole
Ciencias Astronómicas
Central star
Stingray Nebula
title_short The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
title_full The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
title_fullStr The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
title_full_unstemmed The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
title_sort The rapid evolution of the central star of the Stingray Nebula - latest news from the HST
dc.creator.none.fl_str_mv Reindl, Nicole
Rauch, Thomas
Miller Bertolami, Marcelo Miguel
Werner, Klaus
author Reindl, Nicole
author_facet Reindl, Nicole
Rauch, Thomas
Miller Bertolami, Marcelo Miguel
Werner, Klaus
author_role author
author2 Rauch, Thomas
Miller Bertolami, Marcelo Miguel
Werner, Klaus
author2_role author
author
author
dc.subject.none.fl_str_mv Ciencias Astronómicas
Central star
Stingray Nebula
topic Ciencias Astronómicas
Central star
Stingray Nebula
dc.description.none.fl_txt_mv SAO 244567 is an unusually fast evolving star. Within twenty years only, it had turned from a B-type supergiant into the central star of the Stingray Nebula. Space- and ground-based observations obtained over the last decades have revealed that its spectrum changes noticeably over just a few years, showing stellar evolution in real time. The low mass of SAO 244567 is, however, in strong contradiction with canonical post-asymptotic giant branch evolution. Thus, its fast evolution has been a mystery for decades. We present preliminary results of the non-LTE spectral analyis of the recently obtained HST/COS observations, which finally allow us to shed light on the evolutionary history of this extraordinary object.
Facultad de Ciencias Astronómicas y Geofísicas
Instituto de Astrofísica de La Plata
description SAO 244567 is an unusually fast evolving star. Within twenty years only, it had turned from a B-type supergiant into the central star of the Stingray Nebula. Space- and ground-based observations obtained over the last decades have revealed that its spectrum changes noticeably over just a few years, showing stellar evolution in real time. The low mass of SAO 244567 is, however, in strong contradiction with canonical post-asymptotic giant branch evolution. Thus, its fast evolution has been a mystery for decades. We present preliminary results of the non-LTE spectral analyis of the recently obtained HST/COS observations, which finally allow us to shed light on the evolutionary history of this extraordinary object.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/87018
url http://sedici.unlp.edu.ar/handle/10915/87018
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1742-6588
info:eu-repo/semantics/altIdentifier/doi/10.1088/1742-6596/728/3/032006
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/
Creative Commons Attribution 3.0 Unported (CC BY 3.0)
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
_version_ 1846783189971894272
score 12.982451

Publicaciones similares