Artículo

Two extreme contact binary systems in the nearest globular cluster M4

Liu, L.; Qian, S. B.; Fernandez Lajus, Eduardo EusebioIcon
Fecha de publicación: 07/2011
Editorial: Oxford University Press
Revista: Monthly Notices Of The Royal Astronomical Society
ISSN: 0035-8711
e-ISSN: 1365-2966
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:

Resumen

We present the results of photometric solutions for two contact binaries in the nearby globular cluster M4. We estimate their physical parameters using the light-curve program of the Wilson Devinney code. These systems have quite different mass ratios, which indicates that they did not form at the same time. V47 is an extreme mass-ratio system (q =0.123 ±0.002) being dissimilar to the same kind of field contact binaries. V53 is a high mass-ratio (q =1.230 ±0.004), deep-contact (f =79.7 ±1.9 per cent) system. It is also a blue straggler.
Palabras clave: Eclipsing Binaries , V53 (Estrella) , V47 (Estrella) , Evolution of Stars , Blue Stragglers
 
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/16410
DOI: http://dx.doi.org/10.1111/j.1365-2966.2011.18791.x
URL: https://academic.oup.com/mnras/article-lookup/doi/10.1111/j.1365-2966.2011.18791
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Articulos de INST.DE ASTROFISICA LA PLATA
Citación
Liu, L.; Qian, S. B.; Fernandez Lajus, Eduardo Eusebio; Two extreme contact binary systems in the nearest globular cluster M4; Oxford University Press; Monthly Notices Of The Royal Astronomical Society; 415; 2; 7-2011; 1509-1522
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