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dc.date.accessioned 2019-11-01T17:43:53Z
dc.date.available 2019-11-01T17:43:53Z
dc.date.issued 2002
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/84665
dc.description.abstract We present a new optical spectroscopic study of the O-type binary HD 165052 based on high-and intermediate-resolution CCD observations. We re-investigated the spectral classification of the binary components, obtaining spectral types of O6.5 V and O7.5 V for the primary and secondary, respectively, finding that both stars display weak CIII λ5696 emission in their spectra. We also determined a radial-velocity orbit for HD 165052 with a period of 2.95510 ± 0.00001 d, and semi-amplitudes of 94.8 and 104.7 ± 0.5km s-1, resulting in a mass ratio Q = 0.9. From a comparison with previous radial-velocity determinations, we found evidence of apsidal motion in the system. Several signatures of wind-wind collision, such as phase-locked variability of the X-ray flux and the Struve-Sahade effect, are also considered. It was also found that the reddening in the region should be normal, in contrast with previous determinations. en
dc.format.extent 202-210 es
dc.language en es
dc.subject Binaries: General es
dc.subject Stars: Early-type es
dc.subject Stars: Individual: Hd 165052 es
dc.subject X-rays: Stars es
dc.title The massive double-lined O-type binary HD 165052 en
dc.type Articulo es
sedici.identifier.other doi:10.1046/j.1365-8711.2002.05404.x es
sedici.identifier.other eid:2-s2.0-0042315165 es
sedici.identifier.issn 0035-8711 es
sedici.creator.person Arias, Julia Inés es
sedici.creator.person Morrell, Nidia Irene es
sedici.creator.person Barbá, Rodolfo Héctor es
sedici.creator.person Bosch, Guillermo Luis es
sedici.creator.person Grosso, M. es
sedici.creator.person Corcoran, Michael es
sedici.subject.materias Ciencias Astronómicas es
sedici.description.fulltext true es
mods.originInfo.place Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
sedici.rights.uri http://creativecommons.org/licenses/by-nc-sa/4.0/
sedici.description.peerReview peer-review es
sedici.relation.journalTitle Monthly Notices of the Royal Astronomical Society es
sedici.relation.journalVolumeAndIssue vol. 333, no. 1 es
sedici.rights.sherpa * RoMEO: verde* Pre-print del autor: can* Post-print del autor: can* Versión de editor/PDF:can* Condiciones:>>El pre-print sólo puede depositarse antes de la aceptación>>Pre-print on author's personal website, employer website, free public server or pre-prints in subject area>>El pre-print debe acompañarse de una declaración establecida (ver enlace)>>Pre-print set statement must be amended upon publication (see policy)>>La versión de editor/PDF puede utilizarse>>Author's Post-print on Institutional repositories or Central repositories>>Publisher's version/PDF on Institutional repositories or Central repositories, with all rights reserved (see policy)>>La fuente editorial debe reconocerse>>Debe ir enlazado a la versión de editor>>La copia archivada debe acompañarse de la frase establecida (ver Política)* Link a Sherpa: http://sherpa.ac.uk/romeo/issn/0035-8711/es/


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Except where otherwise noted, this item's license is described as Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)