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dc.contributor.author
Walborn, Nolan R.
dc.contributor.author
Maíz Apellániz, Jesús
dc.contributor.author
Sota, Alfredo
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Alfaro, Emilio J.
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Morrell, Nidia I.
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Barba, Rodolfo Hector
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Arias, Julia Ines
dc.contributor.author
Gamen, Roberto Claudio
dc.date.available
2016-12-26T14:21:17Z
dc.date.issued
2011-11
dc.identifier.citation
Walborn, Nolan R.; Maíz Apellániz, Jesús; Sota, Alfredo; Alfaro, Emilio J.; Morrell, Nidia I.; et al.; Further results from the galactic O-Star Spectroscopic Survey: rapidly rotating late ON giants; Iop Publishing; Astrophysical Journal; 142; 5; 11-2011; 150-156
dc.identifier.issn
0004-637X
dc.identifier.uri
http://hdl.handle.net/11336/10068
dc.description.abstract
With new data from the Galactic O-Star Spectroscopic Survey, we confirm and expand the ONn category of late-O, nitrogen-enriched (N), rapidly rotating (n) giants. In particular, we have discovered two “clones” (HD 102415 and HD 117490) of one of the most rapidly rotating O stars previously known (HD 191423, “Howarth’s Star”). We compare the locations of these objects in the theoretical H-R diagram to those of slowly rotating ON dwarfs and supergiants. All ON giants known to date are rapid rotators, whereas no ON dwarf or supergiant is, but all ON stars are small fractions of their respective spectral-type/luminosity-class/rotational subcategories. The ONn giants, displaying both substantial processed material and high rotation at an intermediate evolutionary stage, may provide significant information about the development of these properties. They may have preserved high initial rotational velocities or may have been spun up by terminal-age main-sequence core contraction; alternatively, and perhaps more likely, they may be products of binary mass transfer. At least some of them are also runaway stars.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Iop Publishing
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Abundances of Stars
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Early Type Stars
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Evolution of Stars
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Fundamental Parameters of Stars
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Astronomía
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Further results from the galactic O-Star Spectroscopic Survey: rapidly rotating late ON giants
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-14T12:55:51Z
dc.journal.volume
142
dc.journal.number
5
dc.journal.pagination
150-156
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Walborn, Nolan R.. Space Telescope Science Institute; Estados Unidos
dc.description.fil
Fil: Maíz Apellániz, Jesús. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
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Fil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
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Fil: Alfaro, Emilio J.. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
dc.description.fil
Fil: Morrell, Nidia I.. The Carnegie Observatories. Las Campanas Observatory; Chile
dc.description.fil
Fil: Barba, Rodolfo Hector. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina. Universidad de la Serena; Chile
dc.description.fil
Fil: Arias, Julia Ines. Universidad de la Serena; Chile
dc.description.fil
Fil: Gamen, Roberto Claudio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico La Plata. Instituto de Astrofísica de La Plata; Argentina
dc.journal.title
Astrophysical Journal
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1088/0004-6256/142/5/150
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0004-6256/142/5/150/meta


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