Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra

Autores
Walborn, Nolan R.; Sota, Alfredo; Maíz Apellániz, Jesús; Alfaro, Emilio J.; Morrell, Nidia I.; Barbá, Rodolfo H.; Arias, Julia I.; Gamen, Roberto Claudio
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
On the basis of an extensive new spectroscopic survey of Galactic O stars, we introduce the Ofc category, which consists of normal spectra with C III λλ4647-4650-4652 emission lines of comparable intensity to those of the Of defining lines N III λλ4634-4640-4642. The former feature is strongly peaked to spectral type O5, at all luminosity classes, but preferentially in some associations or clusters and not others. The relationships of this phenomenon to the selective C III λ5696 emission throughout the normal Of domain, and to the peculiar, variable Of?p category, for which strong C III λλ4647-4650-4652 emission is a defining characteristic, are discussed. Magnetic fields have recently been detected on two members of the latter category. We also present two new extreme Of?p stars, NGC 1624-2 and CPD –28° 2561, bringing the number known in the Galaxy to five. Modeling of the behavior of these spectral features can be expected to better define the physical parameters of both normal and peculiar objects, as well as the atomic physics involved.
Fil: Walborn, Nolan R.. Space Telescope Science Institute; Estados Unidos
Fil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Maíz Apellániz, Jesús. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Alfaro, Emilio J.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Morrell, Nidia I.. Las Campanas Observatory. Carnegie Observatories; Chile
Fil: Barbá, Rodolfo H.. Universidad de la Serena. Facultad de Ciencias; Chile
Fil: Arias, Julia I.. Universidad de la Serena. Facultad de Ciencias; Chile
Fil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
Materia
Early Type Stars
Be Stars
Fundamental Parameters (Estrellas)
Emission Line (Estrellas)
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:11336/9585
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/9585
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of SpectraWalborn, Nolan R.Sota, AlfredoMaíz Apellániz, JesúsAlfaro, Emilio J.Morrell, Nidia I.Barbá, Rodolfo H.Arias, Julia I.Gamen, Roberto ClaudioEarly Type StarsBe StarsFundamental Parameters (Estrellas)Emission Line (Estrellas)https://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1On the basis of an extensive new spectroscopic survey of Galactic O stars, we introduce the Ofc category, which consists of normal spectra with C III λλ4647-4650-4652 emission lines of comparable intensity to those of the Of defining lines N III λλ4634-4640-4642. The former feature is strongly peaked to spectral type O5, at all luminosity classes, but preferentially in some associations or clusters and not others. The relationships of this phenomenon to the selective C III λ5696 emission throughout the normal Of domain, and to the peculiar, variable Of?p category, for which strong C III λλ4647-4650-4652 emission is a defining characteristic, are discussed. Magnetic fields have recently been detected on two members of the latter category. We also present two new extreme Of?p stars, NGC 1624-2 and CPD –28° 2561, bringing the number known in the Galaxy to five. Modeling of the behavior of these spectral features can be expected to better define the physical parameters of both normal and peculiar objects, as well as the atomic physics involved.Fil: Walborn, Nolan R.. Space Telescope Science Institute; Estados UnidosFil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; EspañaFil: Maíz Apellániz, Jesús. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; EspañaFil: Alfaro, Emilio J.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; EspañaFil: Morrell, Nidia I.. Las Campanas Observatory. Carnegie Observatories; ChileFil: Barbá, Rodolfo H.. Universidad de la Serena. Facultad de Ciencias; ChileFil: Arias, Julia I.. Universidad de la Serena. Facultad de Ciencias; ChileFil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; ArgentinaIop Publishing2010-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9585Walborn, Nolan R.; Sota, Alfredo; Maíz Apellániz, Jesús; Alfaro, Emilio J.; Morrell, Nidia I.; et al.; Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra; Iop Publishing; Astrophysical Journal; 711; 2; 3-2010; 143-1470004-637Xenginfo:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/711/2/L143info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2041-8205/711/2/L143/metainfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:49Zoai:ri.conicet.gov.ar:11336/9585instacron: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 10:09:49.801CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
title Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
spellingShingle Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
Walborn, Nolan R.
Early Type Stars
Be Stars
Fundamental Parameters (Estrellas)
Emission Line (Estrellas)
title_short Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
title_full Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
title_fullStr Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
title_full_unstemmed Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
title_sort Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra
dc.creator.none.fl_str_mv Walborn, Nolan R.
Sota, Alfredo
Maíz Apellániz, Jesús
Alfaro, Emilio J.
Morrell, Nidia I.
Barbá, Rodolfo H.
Arias, Julia I.
Gamen, Roberto Claudio
author Walborn, Nolan R.
author_facet Walborn, Nolan R.
Sota, Alfredo
Maíz Apellániz, Jesús
Alfaro, Emilio J.
Morrell, Nidia I.
Barbá, Rodolfo H.
Arias, Julia I.
Gamen, Roberto Claudio
author_role author
author2 Sota, Alfredo
Maíz Apellániz, Jesús
Alfaro, Emilio J.
Morrell, Nidia I.
Barbá, Rodolfo H.
Arias, Julia I.
Gamen, Roberto Claudio
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Early Type Stars
Be Stars
Fundamental Parameters (Estrellas)
Emission Line (Estrellas)
topic Early Type Stars
Be Stars
Fundamental Parameters (Estrellas)
Emission Line (Estrellas)
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 an extensive new spectroscopic survey of Galactic O stars, we introduce the Ofc category, which consists of normal spectra with C III λλ4647-4650-4652 emission lines of comparable intensity to those of the Of defining lines N III λλ4634-4640-4642. The former feature is strongly peaked to spectral type O5, at all luminosity classes, but preferentially in some associations or clusters and not others. The relationships of this phenomenon to the selective C III λ5696 emission throughout the normal Of domain, and to the peculiar, variable Of?p category, for which strong C III λλ4647-4650-4652 emission is a defining characteristic, are discussed. Magnetic fields have recently been detected on two members of the latter category. We also present two new extreme Of?p stars, NGC 1624-2 and CPD –28° 2561, bringing the number known in the Galaxy to five. Modeling of the behavior of these spectral features can be expected to better define the physical parameters of both normal and peculiar objects, as well as the atomic physics involved.
Fil: Walborn, Nolan R.. Space Telescope Science Institute; Estados Unidos
Fil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Maíz Apellániz, Jesús. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Alfaro, Emilio J.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
Fil: Morrell, Nidia I.. Las Campanas Observatory. Carnegie Observatories; Chile
Fil: Barbá, Rodolfo H.. Universidad de la Serena. Facultad de Ciencias; Chile
Fil: Arias, Julia I.. Universidad de la Serena. Facultad de Ciencias; Chile
Fil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
description On the basis of an extensive new spectroscopic survey of Galactic O stars, we introduce the Ofc category, which consists of normal spectra with C III λλ4647-4650-4652 emission lines of comparable intensity to those of the Of defining lines N III λλ4634-4640-4642. The former feature is strongly peaked to spectral type O5, at all luminosity classes, but preferentially in some associations or clusters and not others. The relationships of this phenomenon to the selective C III λ5696 emission throughout the normal Of domain, and to the peculiar, variable Of?p category, for which strong C III λλ4647-4650-4652 emission is a defining characteristic, are discussed. Magnetic fields have recently been detected on two members of the latter category. We also present two new extreme Of?p stars, NGC 1624-2 and CPD –28° 2561, bringing the number known in the Galaxy to five. Modeling of the behavior of these spectral features can be expected to better define the physical parameters of both normal and peculiar objects, as well as the atomic physics involved.
publishDate 2010
dc.date.none.fl_str_mv 2010-03
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/11336/9585
Walborn, Nolan R.; Sota, Alfredo; Maíz Apellániz, Jesús; Alfaro, Emilio J.; Morrell, Nidia I.; et al.; Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra; Iop Publishing; Astrophysical Journal; 711; 2; 3-2010; 143-147
0004-637X
url http://hdl.handle.net/11336/9585
identifier_str_mv Walborn, Nolan R.; Sota, Alfredo; Maíz Apellániz, Jesús; Alfaro, Emilio J.; Morrell, Nidia I.; et al.; Early results from the Galactic O-Star Spectroscopic Survey: C III emission lines in Of Spectra; Iop Publishing; Astrophysical Journal; 711; 2; 3-2010; 143-147
0004-637X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1088/2041-8205/711/2/L143
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/2041-8205/711/2/L143/meta
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
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
_version_ 1844613980809592832
score 13.070432

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