An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy

Autores
Cuneo, Virginia; Kenyon, Scott J.; Gomez, Mercedes Nieves; Chochol, Drahomir; Shugarov, Sergey Y.; Kolotilov, Eugeni A.
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
We analyse ~32 yr of optical spectra and photometry for the symbiotic binary PU Vul. Light curves for the He I λ4471, He II λ4686, and Hß λ4861 emission lines reveal an illumination effect, where the hot white dwarf ionizes the outflowing wind of the red giant, and evidence for an eccentric orbit with e ≥ 0.16. Along with the gradual appearance of high ionization emission from [Fe VII] and OVI, the relative fluxes of these lines suggest an increase in the effective temperature of the hot component, from roughly 105 K on JD 244 8000 (1990) to roughly 2 × 105 K on JD 245 5000 (2009). During this period, the luminosity of the hot component dropped by a factor of 4-6 to a current value of roughly 1000 L⊙.
Fil: Cuneo, Virginia. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Kenyon, Scott J.. Smithsonian Astrophysical Observatory; Estados Unidos
Fil: Gomez, Mercedes Nieves. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
Fil: Chochol, Drahomir. Astronomical Institute Slovak Academy Of Sciences; Eslovaquia
Fil: Shugarov, Sergey Y.. Astronomical Institute Slovak Academy Of Sciences; Eslovaquia
Fil: Kolotilov, Eugeni A.. Sternberg Astronomical Institute; Rusia
Materia
BINARIES: SPECTROSCOPIC
BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: PU VUL
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/82407
Acceder
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network_name_str CONICET Digital (CONICET)
spelling An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopyCuneo, VirginiaKenyon, Scott J.Gomez, Mercedes NievesChochol, DrahomirShugarov, Sergey Y.Kolotilov, Eugeni A.BINARIES: SPECTROSCOPICBINARIES: SYMBIOTICSTARS: INDIVIDUAL: PU VULhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We analyse ~32 yr of optical spectra and photometry for the symbiotic binary PU Vul. Light curves for the He I λ4471, He II λ4686, and Hß λ4861 emission lines reveal an illumination effect, where the hot white dwarf ionizes the outflowing wind of the red giant, and evidence for an eccentric orbit with e ≥ 0.16. Along with the gradual appearance of high ionization emission from [Fe VII] and OVI, the relative fluxes of these lines suggest an increase in the effective temperature of the hot component, from roughly 105 K on JD 244 8000 (1990) to roughly 2 × 105 K on JD 245 5000 (2009). During this period, the luminosity of the hot component dropped by a factor of 4-6 to a current value of roughly 1000 L⊙.Fil: Cuneo, Virginia. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Kenyon, Scott J.. Smithsonian Astrophysical Observatory; Estados UnidosFil: Gomez, Mercedes Nieves. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Observatorio Astronomico de la Universidad Nacional de Cordoba; ArgentinaFil: Chochol, Drahomir. Astronomical Institute Slovak Academy Of Sciences; EslovaquiaFil: Shugarov, Sergey Y.. Astronomical Institute Slovak Academy Of Sciences; EslovaquiaFil: Kolotilov, Eugeni A.. Sternberg Astronomical Institute; RusiaWiley Blackwell Publishing, Inc2018-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82407Cuneo, Virginia; Kenyon, Scott J.; Gomez, Mercedes Nieves; Chochol, Drahomir; Shugarov, Sergey Y.; et al.; An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 479; 2; 9-2018; 2728-27420035-8711CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1686info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/479/2/2728/5047318info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:58Zoai:ri.conicet.gov.ar:11336/82407instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:02:59.147CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
title An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
spellingShingle An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
Cuneo, Virginia
BINARIES: SPECTROSCOPIC
BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: PU VUL
title_short An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
title_full An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
title_fullStr An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
title_full_unstemmed An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
title_sort An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy
dc.creator.none.fl_str_mv Cuneo, Virginia
Kenyon, Scott J.
Gomez, Mercedes Nieves
Chochol, Drahomir
Shugarov, Sergey Y.
Kolotilov, Eugeni A.
author Cuneo, Virginia
author_facet Cuneo, Virginia
Kenyon, Scott J.
Gomez, Mercedes Nieves
Chochol, Drahomir
Shugarov, Sergey Y.
Kolotilov, Eugeni A.
author_role author
author2 Kenyon, Scott J.
Gomez, Mercedes Nieves
Chochol, Drahomir
Shugarov, Sergey Y.
Kolotilov, Eugeni A.
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv BINARIES: SPECTROSCOPIC
BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: PU VUL
topic BINARIES: SPECTROSCOPIC
BINARIES: SYMBIOTIC
STARS: INDIVIDUAL: PU VUL
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv We analyse ~32 yr of optical spectra and photometry for the symbiotic binary PU Vul. Light curves for the He I λ4471, He II λ4686, and Hß λ4861 emission lines reveal an illumination effect, where the hot white dwarf ionizes the outflowing wind of the red giant, and evidence for an eccentric orbit with e ≥ 0.16. Along with the gradual appearance of high ionization emission from [Fe VII] and OVI, the relative fluxes of these lines suggest an increase in the effective temperature of the hot component, from roughly 105 K on JD 244 8000 (1990) to roughly 2 × 105 K on JD 245 5000 (2009). During this period, the luminosity of the hot component dropped by a factor of 4-6 to a current value of roughly 1000 L⊙.
Fil: Cuneo, Virginia. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Kenyon, Scott J.. Smithsonian Astrophysical Observatory; Estados Unidos
Fil: Gomez, Mercedes Nieves. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Observatorio Astronomico de la Universidad Nacional de Cordoba; Argentina
Fil: Chochol, Drahomir. Astronomical Institute Slovak Academy Of Sciences; Eslovaquia
Fil: Shugarov, Sergey Y.. Astronomical Institute Slovak Academy Of Sciences; Eslovaquia
Fil: Kolotilov, Eugeni A.. Sternberg Astronomical Institute; Rusia
description We analyse ~32 yr of optical spectra and photometry for the symbiotic binary PU Vul. Light curves for the He I λ4471, He II λ4686, and Hß λ4861 emission lines reveal an illumination effect, where the hot white dwarf ionizes the outflowing wind of the red giant, and evidence for an eccentric orbit with e ≥ 0.16. Along with the gradual appearance of high ionization emission from [Fe VII] and OVI, the relative fluxes of these lines suggest an increase in the effective temperature of the hot component, from roughly 105 K on JD 244 8000 (1990) to roughly 2 × 105 K on JD 245 5000 (2009). During this period, the luminosity of the hot component dropped by a factor of 4-6 to a current value of roughly 1000 L⊙.
publishDate 2018
dc.date.none.fl_str_mv 2018-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
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://hdl.handle.net/11336/82407
Cuneo, Virginia; Kenyon, Scott J.; Gomez, Mercedes Nieves; Chochol, Drahomir; Shugarov, Sergey Y.; et al.; An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 479; 2; 9-2018; 2728-2742
0035-8711
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82407
identifier_str_mv Cuneo, Virginia; Kenyon, Scott J.; Gomez, Mercedes Nieves; Chochol, Drahomir; Shugarov, Sergey Y.; et al.; An illumination effect and an eccentric orbit for the symbiotic binary PU Vul revealed by 32 yr of optical spectroscopy; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 479; 2; 9-2018; 2728-2742
0035-8711
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1093/mnras/sty1686
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-abstract/479/2/2728/5047318
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
publisher.none.fl_str_mv Wiley Blackwell Publishing, Inc
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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