Subir material

Suba sus trabajos a SEDICI, para mejorar notoriamente su visibilidad e impacto


Mostrar registro sencillo 2010-08-26T16:05:55Z 2010-08-26T03:00:00Z 2001
dc.description.abstract Optical spectroscopy of CPD-59° 2635, one of the O-type stars in the open cluster Trumpler 16 in the Carina Nebula, reveals this star to be a double-lined binary system. We have obtained the first radial velocity orbit for this system, consisting of a circular solution with a period of 2.2999 d and semi-amplitudes of 208 and 273 km s−1. This results in minimum masses of 15 and 11 M? for the binary components of CPD-59° 2635, which we classified as O8V and O9.5V, although spectral type variations of the order of 1 subclass, which we identify as the Struve–Sahade effect, seem to be present in both components. From ROSAT HRI observations of CPD −59° 2635 we determine a luminosity ratio log(Lx/Lbol)≈−7, which is similar to that observed for other O-type stars in the Carina Nebula region. No evidence of light variations is present in the available optical or X-ray data sets. en
dc.format.extent p. 78-84 es
dc.language en es
dc.title Optical Spectroscopy of X-Mega Targets in Carina Nebula en
dc.type Articulo es
sedici.identifier.uri es
sedici.identifier.uri es
sedici.identifier.doi 10.1046/j.1365-8711.2001.04497.x
sedici.identifier.issn 1365-2966 es
sedici.title.subtitle I. CPD -59:2635: A New Double-Lined O-Type Binary in the Carina Nebula en
sedici.creator.person Albacete Colombo, Juan Facundo es
sedici.creator.person Morrell, Nidia es
sedici.creator.person Niemela, Virpi es
sedici.creator.person Corcoran, Michael es
sedici.subject.materias Ciencias Astronómicas es
sedici.subject.other astrofísica es
sedici.subject.keyword binaries: general; stars: early-type; stars: individual: CPD 2598 2635; open clusters and associations: individual: Trumpler 16; X-rays: stars es
sedici.description.fulltext true es Facultad de Ciencias Astronómicas y Geofísicas es
sedici.subtype Articulo es
sedici.rights.license Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
sedici.description.peerReview peer-review es
sedici2003.identifier ARG-UNLP-ART-0000006370 es
sedici.relation.journalTitle Monthly Notices of the Royal Astronomical Society es
sedici.relation.journalVolumeAndIssue vol. 326, no. 1 es

Descargar archivos

Este ítem aparece en las siguientes colecciones:

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