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dc.contributor.author
Liu, L.  
dc.contributor.author
Qian, S. B.  
dc.contributor.author
Fernandez Lajus, Eduardo Eusebio  
dc.date.available
2017-05-12T19:42:21Z  
dc.date.issued
2011-07  
dc.identifier.citation
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  
dc.identifier.issn
0035-8711  
dc.identifier.uri
http://hdl.handle.net/11336/16410  
dc.description.abstract
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.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
Oxford University Press  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Eclipsing Binaries  
dc.subject
V53 (Estrella)  
dc.subject
V47 (Estrella)  
dc.subject
Evolution of Stars  
dc.subject
Blue Stragglers  
dc.subject.classification
Astronomía  
dc.subject.classification
Ciencias Físicas  
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS  
dc.title
Two extreme contact binary systems in the nearest globular cluster M4  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2017-03-27T15:54:41Z  
dc.identifier.eissn
1365-2966  
dc.journal.volume
415  
dc.journal.number
2  
dc.journal.pagination
1509-1522  
dc.journal.pais
Reino Unido  
dc.journal.ciudad
Oxford  
dc.description.fil
Fil: Liu, L.. Chinese Academy Of Sciences; República de China  
dc.description.fil
Fil: Qian, S. B.. Chinese Academy Of Sciences; República de China  
dc.description.fil
Fil: Fernandez Lajus, Eduardo Eusebio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina; Argentina  
dc.journal.title
Monthly Notices Of The Royal Astronomical Society  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1111/j.1365-2966.2011.18791.x  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/mnras/article-lookup/doi/10.1111/j.1365-2966.2011.18791.x  

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