Non-synchronous rotations in massive binary systems: HD 93343 revisited

Autores
Putkuri, Cristina Ester; Gamen, Roberto Claudio; Morrell, Nidia Irene; Simón Díaz, S.; Barba, Rodolfo Hector; Ferrero, G. A.; Arias, Julia Ines; Solivella, Gladys Rebeca
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Context. Most massive stars are in binary or multiple systems. Several massive stars have been detected as double-lined spectroscopic binaries and among these, the OWN Survey has detected a non-negligible number whose components show very different spectral line broadening (i.e., projected rotational velocities). This fact raises a discussion about the contributing processes, such as angular-momentum transfer and tidal forces. Aims. We seek to constrain the physical and evolutionary status of one of such systems, the O+O binary HD 93343. Methods. We analyzed a series of high-resolution multiepoch optical spectra to determine the orbital parameters, projected rotational velocities, and evolutionary status of the system. Results. HD 93343 is a binary system comprised of two O7.5 Vz stars that each have minimum masses of approximately 22 M in a wide and eccentric orbit (e = 0.398±0.004; P = 50.432±0.001 d). Both stars have very similar stellar parameters, and hence ages. As expected from the qualitative appearance of the combined spectrum of the system, however, these stars have very different projected rotational velocities (65 and 325 km s-1, respectively). Conclusions. The orbits and stellar parameters obtained for both components seem to indicate that their youth and relative separation is enough to discard the effects of mass transfer and tidal friction. Thus, non-synchronization should be intrinsic to their formation.
Fil: Putkuri, Cristina Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Gamen, Roberto Claudio. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Morrell, Nidia Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Las Campanas Observatory; Chile
Fil: Simón Díaz, S.. Observatorio Las Campanas; Chile
Fil: Barba, Rodolfo Hector. Universidad de La Serena; Chile
Fil: Ferrero, G. A.. Universidad de La Serena; Chile
Fil: Arias, Julia Ines. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Solivella, Gladys Rebeca. Universidad de La Serena; Chile
Materia
BINARIES: SPECTROSCOPIC
STARS: EARLY-TYPE
STARS: INDIVIDUAL: HD 93343
STARS: ROTATION
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:11336/82435
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Non-synchronous rotations in massive binary systems: HD 93343 revisitedPutkuri, Cristina EsterGamen, Roberto ClaudioMorrell, Nidia IreneSimón Díaz, S.Barba, Rodolfo HectorFerrero, G. A.Arias, Julia InesSolivella, Gladys RebecaBINARIES: SPECTROSCOPICSTARS: EARLY-TYPESTARS: INDIVIDUAL: HD 93343STARS: ROTATIONhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Context. Most massive stars are in binary or multiple systems. Several massive stars have been detected as double-lined spectroscopic binaries and among these, the OWN Survey has detected a non-negligible number whose components show very different spectral line broadening (i.e., projected rotational velocities). This fact raises a discussion about the contributing processes, such as angular-momentum transfer and tidal forces. Aims. We seek to constrain the physical and evolutionary status of one of such systems, the O+O binary HD 93343. Methods. We analyzed a series of high-resolution multiepoch optical spectra to determine the orbital parameters, projected rotational velocities, and evolutionary status of the system. Results. HD 93343 is a binary system comprised of two O7.5 Vz stars that each have minimum masses of approximately 22 M in a wide and eccentric orbit (e = 0.398±0.004; P = 50.432±0.001 d). Both stars have very similar stellar parameters, and hence ages. As expected from the qualitative appearance of the combined spectrum of the system, however, these stars have very different projected rotational velocities (65 and 325 km s-1, respectively). Conclusions. The orbits and stellar parameters obtained for both components seem to indicate that their youth and relative separation is enough to discard the effects of mass transfer and tidal friction. Thus, non-synchronization should be intrinsic to their formation.Fil: Putkuri, Cristina Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Gamen, Roberto Claudio. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Morrell, Nidia Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Las Campanas Observatory; ChileFil: Simón Díaz, S.. Observatorio Las Campanas; ChileFil: Barba, Rodolfo Hector. Universidad de La Serena; ChileFil: Ferrero, G. A.. Universidad de La Serena; ChileFil: Arias, Julia Ines. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; ArgentinaFil: Solivella, Gladys Rebeca. Universidad de La Serena; ChileEDP Sciences2018-10info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/82435Putkuri, Cristina Ester; Gamen, Roberto Claudio; Morrell, Nidia Irene; Simón Díaz, S.; Barba, Rodolfo Hector; et al.; Non-synchronous rotations in massive binary systems: HD 93343 revisited; EDP Sciences; Astronomy and Astrophysics; 618; 10-2018; 174-1830004-6361CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201833574info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/201833574info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:14:25Zoai:ri.conicet.gov.ar:11336/82435instacron: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 10:14:25.756CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Non-synchronous rotations in massive binary systems: HD 93343 revisited
title Non-synchronous rotations in massive binary systems: HD 93343 revisited
spellingShingle Non-synchronous rotations in massive binary systems: HD 93343 revisited
Putkuri, Cristina Ester
BINARIES: SPECTROSCOPIC
STARS: EARLY-TYPE
STARS: INDIVIDUAL: HD 93343
STARS: ROTATION
title_short Non-synchronous rotations in massive binary systems: HD 93343 revisited
title_full Non-synchronous rotations in massive binary systems: HD 93343 revisited
title_fullStr Non-synchronous rotations in massive binary systems: HD 93343 revisited
title_full_unstemmed Non-synchronous rotations in massive binary systems: HD 93343 revisited
title_sort Non-synchronous rotations in massive binary systems: HD 93343 revisited
dc.creator.none.fl_str_mv Putkuri, Cristina Ester
Gamen, Roberto Claudio
Morrell, Nidia Irene
Simón Díaz, S.
Barba, Rodolfo Hector
Ferrero, G. A.
Arias, Julia Ines
Solivella, Gladys Rebeca
author Putkuri, Cristina Ester
author_facet Putkuri, Cristina Ester
Gamen, Roberto Claudio
Morrell, Nidia Irene
Simón Díaz, S.
Barba, Rodolfo Hector
Ferrero, G. A.
Arias, Julia Ines
Solivella, Gladys Rebeca
author_role author
author2 Gamen, Roberto Claudio
Morrell, Nidia Irene
Simón Díaz, S.
Barba, Rodolfo Hector
Ferrero, G. A.
Arias, Julia Ines
Solivella, Gladys Rebeca
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv BINARIES: SPECTROSCOPIC
STARS: EARLY-TYPE
STARS: INDIVIDUAL: HD 93343
STARS: ROTATION
topic BINARIES: SPECTROSCOPIC
STARS: EARLY-TYPE
STARS: INDIVIDUAL: HD 93343
STARS: ROTATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Context. Most massive stars are in binary or multiple systems. Several massive stars have been detected as double-lined spectroscopic binaries and among these, the OWN Survey has detected a non-negligible number whose components show very different spectral line broadening (i.e., projected rotational velocities). This fact raises a discussion about the contributing processes, such as angular-momentum transfer and tidal forces. Aims. We seek to constrain the physical and evolutionary status of one of such systems, the O+O binary HD 93343. Methods. We analyzed a series of high-resolution multiepoch optical spectra to determine the orbital parameters, projected rotational velocities, and evolutionary status of the system. Results. HD 93343 is a binary system comprised of two O7.5 Vz stars that each have minimum masses of approximately 22 M in a wide and eccentric orbit (e = 0.398±0.004; P = 50.432±0.001 d). Both stars have very similar stellar parameters, and hence ages. As expected from the qualitative appearance of the combined spectrum of the system, however, these stars have very different projected rotational velocities (65 and 325 km s-1, respectively). Conclusions. The orbits and stellar parameters obtained for both components seem to indicate that their youth and relative separation is enough to discard the effects of mass transfer and tidal friction. Thus, non-synchronization should be intrinsic to their formation.
Fil: Putkuri, Cristina Ester. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Gamen, Roberto Claudio. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Morrell, Nidia Irene. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina. Las Campanas Observatory; Chile
Fil: Simón Díaz, S.. Observatorio Las Campanas; Chile
Fil: Barba, Rodolfo Hector. Universidad de La Serena; Chile
Fil: Ferrero, G. A.. Universidad de La Serena; Chile
Fil: Arias, Julia Ines. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina
Fil: Solivella, Gladys Rebeca. Universidad de La Serena; Chile
description Context. Most massive stars are in binary or multiple systems. Several massive stars have been detected as double-lined spectroscopic binaries and among these, the OWN Survey has detected a non-negligible number whose components show very different spectral line broadening (i.e., projected rotational velocities). This fact raises a discussion about the contributing processes, such as angular-momentum transfer and tidal forces. Aims. We seek to constrain the physical and evolutionary status of one of such systems, the O+O binary HD 93343. Methods. We analyzed a series of high-resolution multiepoch optical spectra to determine the orbital parameters, projected rotational velocities, and evolutionary status of the system. Results. HD 93343 is a binary system comprised of two O7.5 Vz stars that each have minimum masses of approximately 22 M in a wide and eccentric orbit (e = 0.398±0.004; P = 50.432±0.001 d). Both stars have very similar stellar parameters, and hence ages. As expected from the qualitative appearance of the combined spectrum of the system, however, these stars have very different projected rotational velocities (65 and 325 km s-1, respectively). Conclusions. The orbits and stellar parameters obtained for both components seem to indicate that their youth and relative separation is enough to discard the effects of mass transfer and tidal friction. Thus, non-synchronization should be intrinsic to their formation.
publishDate 2018
dc.date.none.fl_str_mv 2018-10
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/11336/82435
Putkuri, Cristina Ester; Gamen, Roberto Claudio; Morrell, Nidia Irene; Simón Díaz, S.; Barba, Rodolfo Hector; et al.; Non-synchronous rotations in massive binary systems: HD 93343 revisited; EDP Sciences; Astronomy and Astrophysics; 618; 10-2018; 174-183
0004-6361
CONICET Digital
CONICET
url http://hdl.handle.net/11336/82435
identifier_str_mv Putkuri, Cristina Ester; Gamen, Roberto Claudio; Morrell, Nidia Irene; Simón Díaz, S.; Barba, Rodolfo Hector; et al.; Non-synchronous rotations in massive binary systems: HD 93343 revisited; EDP Sciences; Astronomy and Astrophysics; 618; 10-2018; 174-183
0004-6361
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1051/0004-6361/201833574
info:eu-repo/semantics/altIdentifier/url/https://www.aanda.org/10.1051/0004-6361/201833574
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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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
dc.publisher.none.fl_str_mv EDP Sciences
publisher.none.fl_str_mv EDP Sciences
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
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score 13.070432

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