Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS)
- Autores
- Arias, Julia Ines; Walborn, Nolan Revere; Díaz, Sergio Simón; Barba, Rodolfo Hector; Apellániz, Jesús Maíz; Sabín Sanjulián, Carolina; Gamen, Roberto Claudio; Morrell, Nidia Irene; Sota, Alfredo; Marco, Amparo; Negueruela, Ignacio; Leão, João R. S.; Herrero, Artemio; Alfaro Navarro, Emilio Javier
- Año de publicación
- 2016
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- On the basis of the Galactic O Star Spectroscopic Survey (GOSSS), we present a detailed systematic investigation of the O Vz stars. The currently used spectral classification criteria are rediscussed, and the Vz phenomenon is recalibrated through the addition of a quantitative criterion based on the equivalent widths of the He i λ4471, He ii λ4542, and He ii λ4686 spectral lines. The GOSSS O Vz and O V populations resulting from the newly adopted spectral classification criteria are comparatively analyzed. The locations of the O Vz stars are probed, showing a concentration of the most extreme cases toward the youngest star-forming regions. The occurrence of the Vz spectral peculiarity in a solar-metallicity environment, as predicted by the fastwind code, is also investigated, confirming the importance of taking into account several processes for the correct interpretation of the phenomenon.
Fil: Arias, Julia Ines. Universidad de la Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Walborn, Nolan Revere. Space Telescope Science Institute; Estados Unidos
Fil: Díaz, Sergio Simón. Universidad de la Laguna; España
Fil: Barba, Rodolfo Hector. Universidad de la Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Apellániz, Jesús Maíz. Centro de Astrobiología; España
Fil: Sabín Sanjulián, Carolina. Universidad de la Serena; Chile
Fil: Gamen, Roberto Claudio. 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
Fil: Morrell, Nidia Irene. Las Campanas Observatory; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sota, Alfredo. Instituto de Astrofisica de Andalucia; España
Fil: Marco, Amparo. Universidad de Alicante; España. University of Florida; Estados Unidos
Fil: Negueruela, Ignacio. Universidad de Alicante; España
Fil: Leão, João R. S.. Universidade Federal do Rio Grande do Norte; Brasil
Fil: Herrero, Artemio. Universidad de la Laguna; España
Fil: Alfaro Navarro, Emilio Javier. Instituto de Astrofisica de Andalucia; España - Materia
-
Stars: Early-Type
Stars: Fundamental Parameters
Surveys - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/37432
Ver los metadatos del registro completo
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oai:ri.conicet.gov.ar:11336/37432 |
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Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS)Arias, Julia InesWalborn, Nolan RevereDíaz, Sergio SimónBarba, Rodolfo HectorApellániz, Jesús MaízSabín Sanjulián, CarolinaGamen, Roberto ClaudioMorrell, Nidia IreneSota, AlfredoMarco, AmparoNegueruela, IgnacioLeão, João R. S.Herrero, ArtemioAlfaro Navarro, Emilio JavierStars: Early-TypeStars: Fundamental ParametersSurveyshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1On the basis of the Galactic O Star Spectroscopic Survey (GOSSS), we present a detailed systematic investigation of the O Vz stars. The currently used spectral classification criteria are rediscussed, and the Vz phenomenon is recalibrated through the addition of a quantitative criterion based on the equivalent widths of the He i λ4471, He ii λ4542, and He ii λ4686 spectral lines. The GOSSS O Vz and O V populations resulting from the newly adopted spectral classification criteria are comparatively analyzed. The locations of the O Vz stars are probed, showing a concentration of the most extreme cases toward the youngest star-forming regions. The occurrence of the Vz spectral peculiarity in a solar-metallicity environment, as predicted by the fastwind code, is also investigated, confirming the importance of taking into account several processes for the correct interpretation of the phenomenon.Fil: Arias, Julia Ines. Universidad de la Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Walborn, Nolan Revere. Space Telescope Science Institute; Estados UnidosFil: Díaz, Sergio Simón. Universidad de la Laguna; EspañaFil: Barba, Rodolfo Hector. Universidad de la Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Apellániz, Jesús Maíz. Centro de Astrobiología; EspañaFil: Sabín Sanjulián, Carolina. Universidad de la Serena; ChileFil: Gamen, Roberto Claudio. 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; ArgentinaFil: Morrell, Nidia Irene. Las Campanas Observatory; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sota, Alfredo. Instituto de Astrofisica de Andalucia; EspañaFil: Marco, Amparo. Universidad de Alicante; España. University of Florida; Estados UnidosFil: Negueruela, Ignacio. Universidad de Alicante; EspañaFil: Leão, João R. S.. Universidade Federal do Rio Grande do Norte; BrasilFil: Herrero, Artemio. Universidad de la Laguna; EspañaFil: Alfaro Navarro, Emilio Javier. Instituto de Astrofisica de Andalucia; EspañaIOP Publishing2016-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/37432Arias, Julia Ines; Walborn, Nolan Revere; Díaz, Sergio Simón; Barba, Rodolfo Hector; Apellániz, Jesús Maíz; et al.; Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS); IOP Publishing; Astronomical Journal; 152; 2; 8-20160004-6256CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.3847/0004-6256/152/2/31info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/0004-6256/152/2/31/metainfo:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1604.03842info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:41:05Zoai:ri.conicet.gov.ar:11336/37432instacron: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:34982025-09-29 09:41:05.952CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) |
title |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) |
spellingShingle |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) Arias, Julia Ines Stars: Early-Type Stars: Fundamental Parameters Surveys |
title_short |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) |
title_full |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) |
title_fullStr |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) |
title_full_unstemmed |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) |
title_sort |
Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS) |
dc.creator.none.fl_str_mv |
Arias, Julia Ines Walborn, Nolan Revere Díaz, Sergio Simón Barba, Rodolfo Hector Apellániz, Jesús Maíz Sabín Sanjulián, Carolina Gamen, Roberto Claudio Morrell, Nidia Irene Sota, Alfredo Marco, Amparo Negueruela, Ignacio Leão, João R. S. Herrero, Artemio Alfaro Navarro, Emilio Javier |
author |
Arias, Julia Ines |
author_facet |
Arias, Julia Ines Walborn, Nolan Revere Díaz, Sergio Simón Barba, Rodolfo Hector Apellániz, Jesús Maíz Sabín Sanjulián, Carolina Gamen, Roberto Claudio Morrell, Nidia Irene Sota, Alfredo Marco, Amparo Negueruela, Ignacio Leão, João R. S. Herrero, Artemio Alfaro Navarro, Emilio Javier |
author_role |
author |
author2 |
Walborn, Nolan Revere Díaz, Sergio Simón Barba, Rodolfo Hector Apellániz, Jesús Maíz Sabín Sanjulián, Carolina Gamen, Roberto Claudio Morrell, Nidia Irene Sota, Alfredo Marco, Amparo Negueruela, Ignacio Leão, João R. S. Herrero, Artemio Alfaro Navarro, Emilio Javier |
author2_role |
author author author author author author author author author author author author author |
dc.subject.none.fl_str_mv |
Stars: Early-Type Stars: Fundamental Parameters Surveys |
topic |
Stars: Early-Type Stars: Fundamental Parameters Surveys |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
On the basis of the Galactic O Star Spectroscopic Survey (GOSSS), we present a detailed systematic investigation of the O Vz stars. The currently used spectral classification criteria are rediscussed, and the Vz phenomenon is recalibrated through the addition of a quantitative criterion based on the equivalent widths of the He i λ4471, He ii λ4542, and He ii λ4686 spectral lines. The GOSSS O Vz and O V populations resulting from the newly adopted spectral classification criteria are comparatively analyzed. The locations of the O Vz stars are probed, showing a concentration of the most extreme cases toward the youngest star-forming regions. The occurrence of the Vz spectral peculiarity in a solar-metallicity environment, as predicted by the fastwind code, is also investigated, confirming the importance of taking into account several processes for the correct interpretation of the phenomenon. Fil: Arias, Julia Ines. Universidad de la Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Walborn, Nolan Revere. Space Telescope Science Institute; Estados Unidos Fil: Díaz, Sergio Simón. Universidad de la Laguna; España Fil: Barba, Rodolfo Hector. Universidad de la Serena; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Apellániz, Jesús Maíz. Centro de Astrobiología; España Fil: Sabín Sanjulián, Carolina. Universidad de la Serena; Chile Fil: Gamen, Roberto Claudio. 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 Fil: Morrell, Nidia Irene. Las Campanas Observatory; Chile. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Sota, Alfredo. Instituto de Astrofisica de Andalucia; España Fil: Marco, Amparo. Universidad de Alicante; España. University of Florida; Estados Unidos Fil: Negueruela, Ignacio. Universidad de Alicante; España Fil: Leão, João R. S.. Universidade Federal do Rio Grande do Norte; Brasil Fil: Herrero, Artemio. Universidad de la Laguna; España Fil: Alfaro Navarro, Emilio Javier. Instituto de Astrofisica de Andalucia; España |
description |
On the basis of the Galactic O Star Spectroscopic Survey (GOSSS), we present a detailed systematic investigation of the O Vz stars. The currently used spectral classification criteria are rediscussed, and the Vz phenomenon is recalibrated through the addition of a quantitative criterion based on the equivalent widths of the He i λ4471, He ii λ4542, and He ii λ4686 spectral lines. The GOSSS O Vz and O V populations resulting from the newly adopted spectral classification criteria are comparatively analyzed. The locations of the O Vz stars are probed, showing a concentration of the most extreme cases toward the youngest star-forming regions. The occurrence of the Vz spectral peculiarity in a solar-metallicity environment, as predicted by the fastwind code, is also investigated, confirming the importance of taking into account several processes for the correct interpretation of the phenomenon. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-08 |
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/11336/37432 Arias, Julia Ines; Walborn, Nolan Revere; Díaz, Sergio Simón; Barba, Rodolfo Hector; Apellániz, Jesús Maíz; et al.; Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS); IOP Publishing; Astronomical Journal; 152; 2; 8-2016 0004-6256 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/37432 |
identifier_str_mv |
Arias, Julia Ines; Walborn, Nolan Revere; Díaz, Sergio Simón; Barba, Rodolfo Hector; Apellániz, Jesús Maíz; et al.; Spectral classification and properties of the O Vz stars in the galactic O-star spectroscopic survey (GOSSS); IOP Publishing; Astronomical Journal; 152; 2; 8-2016 0004-6256 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.3847/0004-6256/152/2/31 info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.3847/0004-6256/152/2/31/meta info:eu-repo/semantics/altIdentifier/url/https://arxiv.org/abs/1604.03842 |
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 application/pdf |
dc.publisher.none.fl_str_mv |
IOP Publishing |
publisher.none.fl_str_mv |
IOP Publishing |
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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1844613299410305024 |
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13.070432 |