The galactic O-star spectroscopic survey (GOSSS). II. Bright southern stars

We present the second installment of GOSSS, a massive spectroscopic survey of Galactic O stars, based on new homogeneous, high signal-to-noise ratio, R ∼ 2500 digital observations from both hemispheres selected from the Galactic O-Star Catalog (GOSC). In this paper we include bright stars and other...

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Detalles Bibliográficos
Autores: Sota Ballano, Alfredo, Maíz Apellániz, Jesús, Morrell, N. I., Barbá, R. H., Walborn, N. R., Gamen, R. C., Arias, J. I., Alfaro, Emilio J.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2014
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/400762
Acceso en línea:http://hdl.handle.net/10261/400762
Access Level:acceso abierto
Palabra clave:Binaries: general
Binaries: spectroscopic
Stars: early-type
Stars: emission-line, Be
Surveys
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network_name_str España
repository_id_str
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 Ballano, Alfredo
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 Ballano, Alfredo
Maíz Apellániz, Jesús
Morrell, N. I.
Barbá, R. H.
Walborn, N. R.
Gamen, R. C.
Arias, J. I.
Alfaro, Emilio J.
author Sota Ballano, Alfredo
author_facet Sota Ballano, Alfredo
Maíz Apellániz, Jesús
Morrell, N. I.
Barbá, R. H.
Walborn, N. R.
Gamen, R. C.
Arias, J. I.
Alfaro, Emilio J.
author_role author
author2 Maíz Apellániz, Jesús
Morrell, N. I.
Barbá, R. H.
Walborn, N. R.
Gamen, R. C.
Arias, J. I.
Alfaro, Emilio J.
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia e Innovación (España)
European Commission
Junta de Andalucía
NASA
Fondo Nacional de Desarrollo Científico y Tecnológico (Chile)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Binaries: general
Binaries: spectroscopic
Stars: early-type
Stars: emission-line, Be
Surveys
topic Binaries: general
Binaries: spectroscopic
Stars: early-type
Stars: emission-line, Be
Surveys
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, R ∼ 2500 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 M☉ are 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. © 2014. The American Astronomical Society
publishDate 2014
dc.date.none.fl_str_mv 2014
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/400762
url http://hdl.handle.net/10261/400762
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
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info:eu-repo/grantAgreement/MEC//AYA2007-64052
info:eu-repo/grantAgreement/MEC//AYA2007-64712
info:eu-repo/grantAgreement/MICINN//AYA2010-17631
info:eu-repo/grantAgreement/MICINN//AYA2010-15081
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http://dx.doi.org/10.1088/0067-0049/211/1/10
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv American Astronomical Society
publisher.none.fl_str_mv American Astronomical Society
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
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spelling The galactic O-star spectroscopic survey (GOSSS). II. Bright southern starsSota Ballano, AlfredoMaíz Apellániz, JesúsMorrell, N. I.Barbá, R. H.Walborn, N. R.Gamen, R. C.Arias, J. I.Alfaro, Emilio J.Binaries: 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, R ∼ 2500 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 M☉ are 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. © 2014. The American Astronomical SocietySupport for this work was provided by (1) the Spanish Government Ministerio de Ciencia e Innovacion through grants ´ AYA2007-64052, AYA2007-64712, AYA 2010-17631, AYA 2010-15081, the Ramon y Cajal Fellowship program, and ´ FEDER funds; (2) the Junta de Andaluc´ıa grant P08-TIC-4075; (3) NASA through grants GO-10205, GO-10602, GO-10898, and GO-11981 from the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy Inc., under NASA contract NAS 5- 26555; (4) the Direccion de Investigaci ´ on de la Universidad de La Serena (DIULS PR09101); (5) the ESO-Government of Chile Joint Committee Postdoctoral Grant; and (6) the Chilean Government grants FONDECYT Regular 1120668 and FONDECYT Iniciacion 11121550. This research has ´ made extensive use of (1) Aladin (Bonnarel et al. 2000), (2) the SIMBAD database, operated at CDS, Strasbourg, France, (3) the Washington Double Star Catalog, maintained at the U.S. Naval Observatory (Mason et al. 2001), and (4) the 2MASS Point Source Catalog (Skrutskie et al. 2006). We would like to thank Miguel Penades Ordaz for his help in the compilation of ´ data for this paper and the anonymous referee for his/her useful comments.Peer reviewedAmerican Astronomical SocietyMinisterio de Ciencia e Innovación (España)European CommissionJunta de AndalucíaNASAFondo Nacional de Desarrollo Científico y Tecnológico (Chile)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202520252014info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/400762reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MEC//AYA2007-64052info:eu-repo/grantAgreement/MEC//AYA2007-64712info:eu-repo/grantAgreement/MICINN//AYA2010-17631info:eu-repo/grantAgreement/MICINN//AYA2010-15081info:eu-repo/grantAgreement/Junta de Andalucía//P08-TIC-4075http://dx.doi.org/10.1088/0067-0049/211/1/10Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/4007622026-05-22T06:33:51Z
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