The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars
- Autores
- Sota, Alfredo; Maíz Apellániz, Jesús; Morrell, Nidia Irene; Barbá, Rodolfo Héctor; Walborn, Nolan Revere; Gamen, Roberto Claudio; Arias, Julia Inés; Alfaro, Emilio J.
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We present the second installment of GOSSS, a massive spectroscopic survey of Galactic O stars, based on new homogeneous, high signal-to-noise ratio, R2500 digital observations from both hemispheres selected from the Galactic O-Star Catalog (GOSC). In this paper we include bright stars and other objects drawn mostly from the first version of GOSC, all of them south of δ = -20°, for a total number of 258 O stars. We also revise the northern sample of Paper I to provide the full list of spectroscopically classified Galactic O stars complete to B = 8, bringing the total number of published GOSSS stars to 448. Extensive sequences of exceptional objects are given, including the early Of/WN, O Iafpe, Ofc, ON/OC, Onfp, Of?p, and Oe types, as well as double/triple-lined spectroscopic binaries. The new spectral subtype O9.2 is also discussed. The magnitude and spatial distributions of the observed sample are analyzed. We also present new results from OWN, a multi-epoch high-resolution spectroscopic survey coordinated with GOSSS that is assembling the largest sample of Galactic spectroscopic massive binaries ever attained. The OWN data combined with additional information on spectroscopic and visual binaries from the literature indicate that only a very small fraction (if any) of the stars with masses above 15-20 Mare born as single systems. In the future we will publish the rest of the GOSSS survey, which is expected to include over 1000 Galactic O stars.
Instituto de Astrofísica de La Plata - Materia
-
Ciencias Astronómicas
binaries: general
binaries: spectroscopic
stars: early-type
stars: emission-line, Be
surveys - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc-sa/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/85564
Ver los metadatos del registro completo
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The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern starsSota, AlfredoMaíz Apellániz, JesúsMorrell, Nidia IreneBarbá, Rodolfo HéctorWalborn, Nolan RevereGamen, Roberto ClaudioArias, Julia InésAlfaro, Emilio J.Ciencias Astronómicasbinaries: generalbinaries: spectroscopicstars: early-typestars: emission-line, BesurveysWe present the second installment of GOSSS, a massive spectroscopic survey of Galactic O stars, based on new homogeneous, high signal-to-noise ratio, R2500 digital observations from both hemispheres selected from the Galactic O-Star Catalog (GOSC). In this paper we include bright stars and other objects drawn mostly from the first version of GOSC, all of them south of δ = -20°, for a total number of 258 O stars. We also revise the northern sample of Paper I to provide the full list of spectroscopically classified Galactic O stars complete to B = 8, bringing the total number of published GOSSS stars to 448. Extensive sequences of exceptional objects are given, including the early Of/WN, O Iafpe, Ofc, ON/OC, Onfp, Of?p, and Oe types, as well as double/triple-lined spectroscopic binaries. The new spectral subtype O9.2 is also discussed. The magnitude and spatial distributions of the observed sample are analyzed. We also present new results from OWN, a multi-epoch high-resolution spectroscopic survey coordinated with GOSSS that is assembling the largest sample of Galactic spectroscopic massive binaries ever attained. The OWN data combined with additional information on spectroscopic and visual binaries from the literature indicate that only a very small fraction (if any) of the stars with masses above 15-20 Mare born as single systems. In the future we will publish the rest of the GOSSS survey, which is expected to include over 1000 Galactic O stars.Instituto de Astrofísica de La Plata2014info: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/10915/85564enginfo:eu-repo/semantics/altIdentifier/issn/0067-0049info:eu-repo/semantics/altIdentifier/doi/10.1088/0067-0049/211/1/10info:eu-repo/semantics/reference/hdl/10915/83946info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:16:24Zoai:sedici.unlp.edu.ar:10915/85564Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:16:25.04SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars |
title |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars |
spellingShingle |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars Sota, Alfredo Ciencias Astronómicas binaries: general binaries: spectroscopic stars: early-type stars: emission-line, Be surveys |
title_short |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars |
title_full |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars |
title_fullStr |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars |
title_full_unstemmed |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars |
title_sort |
The Galactic O-Star Spectroscopic Survey (GOSSS) : II. Bright southern stars |
dc.creator.none.fl_str_mv |
Sota, Alfredo Maíz Apellániz, Jesús Morrell, Nidia Irene Barbá, Rodolfo Héctor Walborn, Nolan Revere Gamen, Roberto Claudio Arias, Julia Inés Alfaro, Emilio J. |
author |
Sota, Alfredo |
author_facet |
Sota, Alfredo Maíz Apellániz, Jesús Morrell, Nidia Irene Barbá, Rodolfo Héctor Walborn, Nolan Revere Gamen, Roberto Claudio Arias, Julia Inés Alfaro, Emilio J. |
author_role |
author |
author2 |
Maíz Apellániz, Jesús Morrell, Nidia Irene Barbá, Rodolfo Héctor Walborn, Nolan Revere Gamen, Roberto Claudio Arias, Julia Inés Alfaro, Emilio J. |
author2_role |
author author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas binaries: general binaries: spectroscopic stars: early-type stars: emission-line, Be surveys |
topic |
Ciencias Astronómicas binaries: general binaries: spectroscopic stars: early-type stars: emission-line, Be surveys |
dc.description.none.fl_txt_mv |
We present the second installment of GOSSS, a massive spectroscopic survey of Galactic O stars, based on new homogeneous, high signal-to-noise ratio, R2500 digital observations from both hemispheres selected from the Galactic O-Star Catalog (GOSC). In this paper we include bright stars and other objects drawn mostly from the first version of GOSC, all of them south of δ = -20°, for a total number of 258 O stars. We also revise the northern sample of Paper I to provide the full list of spectroscopically classified Galactic O stars complete to B = 8, bringing the total number of published GOSSS stars to 448. Extensive sequences of exceptional objects are given, including the early Of/WN, O Iafpe, Ofc, ON/OC, Onfp, Of?p, and Oe types, as well as double/triple-lined spectroscopic binaries. The new spectral subtype O9.2 is also discussed. The magnitude and spatial distributions of the observed sample are analyzed. We also present new results from OWN, a multi-epoch high-resolution spectroscopic survey coordinated with GOSSS that is assembling the largest sample of Galactic spectroscopic massive binaries ever attained. The OWN data combined with additional information on spectroscopic and visual binaries from the literature indicate that only a very small fraction (if any) of the stars with masses above 15-20 Mare born as single systems. In the future we will publish the rest of the GOSSS survey, which is expected to include over 1000 Galactic O stars. Instituto de Astrofísica de La Plata |
description |
We present the second installment of GOSSS, a massive spectroscopic survey of Galactic O stars, based on new homogeneous, high signal-to-noise ratio, R2500 digital observations from both hemispheres selected from the Galactic O-Star Catalog (GOSC). In this paper we include bright stars and other objects drawn mostly from the first version of GOSC, all of them south of δ = -20°, for a total number of 258 O stars. We also revise the northern sample of Paper I to provide the full list of spectroscopically classified Galactic O stars complete to B = 8, bringing the total number of published GOSSS stars to 448. Extensive sequences of exceptional objects are given, including the early Of/WN, O Iafpe, Ofc, ON/OC, Onfp, Of?p, and Oe types, as well as double/triple-lined spectroscopic binaries. The new spectral subtype O9.2 is also discussed. The magnitude and spatial distributions of the observed sample are analyzed. We also present new results from OWN, a multi-epoch high-resolution spectroscopic survey coordinated with GOSSS that is assembling the largest sample of Galactic spectroscopic massive binaries ever attained. The OWN data combined with additional information on spectroscopic and visual binaries from the literature indicate that only a very small fraction (if any) of the stars with masses above 15-20 Mare born as single systems. In the future we will publish the rest of the GOSSS survey, which is expected to include over 1000 Galactic O stars. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 |
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/10915/85564 |
url |
http://sedici.unlp.edu.ar/handle/10915/85564 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/issn/0067-0049 info:eu-repo/semantics/altIdentifier/doi/10.1088/0067-0049/211/1/10 info:eu-repo/semantics/reference/hdl/10915/83946 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) |
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