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dc.contributor.author Walborn, Nolan R.
dc.contributor.author Maíz Apellániz, Jesús
dc.contributor.author Sota, Alfredo
dc.contributor.author Alfaro, Emilio J.
dc.contributor.author Morrell, Nidia I.
dc.contributor.author Barba, Rodolfo Hector
dc.contributor.author 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
dc.subject Early type stars
dc.subject Evolution of stars
dc.subject Fundamental parameters of stars
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification 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
dc.description.fil Fil: Sota, Alfredo. Consejo Superior de Investigaciones Cientificas. Instituto de Astrofísica de Andalucía; España
dc.description.fil 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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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)