The massive Wolf-Rayet binary LSS 1964 (=WR 29)

Context. WR 29 is a known WN7h+O double-lined binary system with a rather short period (3.164 days). Aims. We search for light variations to determine the inclination of the system and thus the absolute masses of both components. Methods. We observed photometrically the field of WR 29 between De...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Gamen, Roberto Claudio, Fernández Lajús, Eduardo, Niemelä, Virpi Sinikka, Barbá, Rodolfo Héctor
Formato: Articulo
Lenguaje:Inglés
Publicado: 2009
Materias:
Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/82791
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-82791
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
spellingShingle Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
Gamen, Roberto Claudio
Fernández Lajús, Eduardo
Niemelä, Virpi Sinikka
Barbá, Rodolfo Héctor
The massive Wolf-Rayet binary LSS 1964 (=WR 29)
topic_facet Ciencias Astronómicas
Stars: binaries: close
Stars: binaries: eclipsing
Stars: binaries: spectroscopic
Stars: Wolf-Rayet
description Context. WR 29 is a known WN7h+O double-lined binary system with a rather short period (3.164 days). Aims. We search for light variations to determine the inclination of the system and thus the absolute masses of both components. Methods. We observed photometrically the field of WR 29 between December, 2002, and February, 2006. Results. We find that the light of WR 29 varies in phase with the spectroscopic period of 3.16412 days, presenting two minima corresponding to the conjunctions of the binary components. Numerical models fitted to the light curve indicate an orbital inclination of about 44°, and masses of 53 M⊙ and 42 M⊙ for the O-and WN-type components, respectively.
format Articulo
Articulo
author Gamen, Roberto Claudio
Fernández Lajús, Eduardo
Niemelä, Virpi Sinikka
Barbá, Rodolfo Héctor
author_facet Gamen, Roberto Claudio
Fernández Lajús, Eduardo
Niemelä, Virpi Sinikka
Barbá, Rodolfo Héctor
author_sort Gamen, Roberto Claudio
title The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_short The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_full The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_fullStr The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_full_unstemmed The massive Wolf-Rayet binary LSS 1964 (=WR 29)
title_sort massive wolf-rayet binary lss 1964 (=wr 29)
publishDate 2009
url http://sedici.unlp.edu.ar/handle/10915/82791
work_keys_str_mv AT gamenrobertoclaudio themassivewolfrayetbinarylss1964wr29
AT fernandezlajuseduardo themassivewolfrayetbinarylss1964wr29
AT niemelavirpisinikka themassivewolfrayetbinarylss1964wr29
AT barbarodolfohector themassivewolfrayetbinarylss1964wr29
AT gamenrobertoclaudio massivewolfrayetbinarylss1964wr29
AT fernandezlajuseduardo massivewolfrayetbinarylss1964wr29
AT niemelavirpisinikka massivewolfrayetbinarylss1964wr29
AT barbarodolfohector massivewolfrayetbinarylss1964wr29
bdutipo_str Repositorios
_version_ 1764820488632139779

Ejemplares similares