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dc.date.accessioned 2019-10-10T18:34:43Z
dc.date.available 2019-10-10T18:34:43Z
dc.date.issued 2002
dc.identifier.uri http://sedici.unlp.edu.ar/handle/10915/83105
dc.description.abstract High-resolution optical spectroscopy of CPD -59°2636, one of the O-type stars in the open cluster Trumpler 16 in the Carina Nebula, reveals this object to be a multiple system displaying triple lines which we label as components A, B and C of spectral types O7 V, O8 V and O9 V, respectively. From our radial velocity measurements we find that the components A and B form a close binary with a period of 3.6284 d, and we obtain the first circular radial velocity orbit for this system with semi-amplitudes of 184 and 192 km s-1, leading to minimum masses of 10.1 and 9.7 M⊙. We find that the component C is a single lined binary with a period of 5.034 d and semi-amplitude of 48 km s-1. We also analyse the X-ray radiation from CPD -59°2636, finding neither appreciable overluminosity nor phase-related X-ray flux variations. en
dc.format.extent 1099-1108 es
dc.language en es
dc.subject 59°2636 es
dc.subject Binaries: general es
dc.subject Open clusters and associations: individual: trumpler 16 es
dc.subject Stars: early-type es
dc.subject Stars: fundamental parameters es
dc.subject Stars: individual: CPD es
dc.subject X-rays: stars es
dc.title Optical spectroscopy of X-Mega targets en
dc.type Articulo es
sedici.identifier.other doi:10.1046/j.1365-8711.2002.05755.x es
sedici.identifier.other eid:2-s2.0-0041963079 es
sedici.identifier.issn 0035-8711 es
sedici.title.subtitle IV. CPD -59°2636: A new O-type multiple system in the Carina Nebula en
sedici.creator.person Albacete Colombo, Juan Facundo es
sedici.creator.person Morrell, Nidia Irene es
sedici.creator.person Rauw, G. es
sedici.creator.person Corcoran, Michael es
sedici.creator.person Niemelä, Virpi Sinikka es
sedici.creator.person Sana, H. 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. 336, no. 4 es


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Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) Excepto donde se diga explícitamente, este item se publica bajo la siguiente licencia Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)