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
.jpg)
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/87018
Ver los metadatos del registro completo
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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 |
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2016 |
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publishedVersion |
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http://sedici.unlp.edu.ar/handle/10915/87018 |
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eng |
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