Identification of a deep contact binary in the field of the globular cluster 47 Tuc
- Autores
- Liu L.; Qian, S. B.; Fernandez Lajus, Eduardo Eusebio
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Three light curves of the eclipsing binary V95–47 Tuc were obtained in serval nights from December, 2010 to November, 2011. By analyzing the light curves with the 2010 version of the W-D code, the mass-ratio and the fill-out factor of V95 are determined as 0.164 and 53.8%, respectively. It is sure that this contact binary is a foreground object of the globular cluster 47 Tuc. By comparing to the Dartmouth model isochrones, the masses and the radii of the component stars are estimated, as well as the age and the distance. They are, M1 ¼ 0:97M; M2 ¼ 0:16M; R1 ¼ 1:05R; R2 ¼ 0:49R, Age = 7.0 Gyr and Dist = 1570 pc. The cool spots model is introduced in the BV-band photometric solutions because of the observed O’Connell effect. We compare the two modeling cool spots in size, temperature and position, thinking that they could be the same one. It can be explained as that a cool spot, which is on the surface of the more massive component, shifted 126 degrees along the latitude line from west to east in a year. This phenomenon may be called as starspot migration.
Fil: Liu L.. Chinese Academy Of Sciences; República de China
Fil: Qian, S. B.. Chinese Academy Of Sciences; República de China
Fil: Fernandez Lajus, Eduardo Eusebio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina - Materia
-
Eclipsing
V95 47 Tuc - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/10763
Ver los metadatos del registro completo
id |
CONICETDig_59240777154dc09d885cad34fc97c236 |
---|---|
oai_identifier_str |
oai:ri.conicet.gov.ar:11336/10763 |
network_acronym_str |
CONICETDig |
repository_id_str |
3498 |
network_name_str |
CONICET Digital (CONICET) |
spelling |
Identification of a deep contact binary in the field of the globular cluster 47 TucLiu L.Qian, S. B.Fernandez Lajus, Eduardo EusebioEclipsingV95 47 Tuchttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Three light curves of the eclipsing binary V95–47 Tuc were obtained in serval nights from December, 2010 to November, 2011. By analyzing the light curves with the 2010 version of the W-D code, the mass-ratio and the fill-out factor of V95 are determined as 0.164 and 53.8%, respectively. It is sure that this contact binary is a foreground object of the globular cluster 47 Tuc. By comparing to the Dartmouth model isochrones, the masses and the radii of the component stars are estimated, as well as the age and the distance. They are, M1 ¼ 0:97M; M2 ¼ 0:16M; R1 ¼ 1:05R; R2 ¼ 0:49R, Age = 7.0 Gyr and Dist = 1570 pc. The cool spots model is introduced in the BV-band photometric solutions because of the observed O’Connell effect. We compare the two modeling cool spots in size, temperature and position, thinking that they could be the same one. It can be explained as that a cool spot, which is on the surface of the more massive component, shifted 126 degrees along the latitude line from west to east in a year. This phenomenon may be called as starspot migration.Fil: Liu L.. Chinese Academy Of Sciences; República de ChinaFil: Qian, S. B.. Chinese Academy Of Sciences; República de ChinaFil: Fernandez Lajus, Eduardo Eusebio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; ArgentinaElsevier Science2014-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10763Liu L.; Qian, S. B.; Fernandez Lajus, Eduardo Eusebio; Identification of a deep contact binary in the field of the globular cluster 47 Tuc; Elsevier Science; New Astronomy; 26; 1; 1-2014; 116-1201384-1076enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.newast.2013.07.004info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S138410761300081Xinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:38:03Zoai:ri.conicet.gov.ar:11336/10763instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:38:03.352CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc |
title |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc |
spellingShingle |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc Liu L. Eclipsing V95 47 Tuc |
title_short |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc |
title_full |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc |
title_fullStr |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc |
title_full_unstemmed |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc |
title_sort |
Identification of a deep contact binary in the field of the globular cluster 47 Tuc |
dc.creator.none.fl_str_mv |
Liu L. Qian, S. B. Fernandez Lajus, Eduardo Eusebio |
author |
Liu L. |
author_facet |
Liu L. Qian, S. B. Fernandez Lajus, Eduardo Eusebio |
author_role |
author |
author2 |
Qian, S. B. Fernandez Lajus, Eduardo Eusebio |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Eclipsing V95 47 Tuc |
topic |
Eclipsing V95 47 Tuc |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Three light curves of the eclipsing binary V95–47 Tuc were obtained in serval nights from December, 2010 to November, 2011. By analyzing the light curves with the 2010 version of the W-D code, the mass-ratio and the fill-out factor of V95 are determined as 0.164 and 53.8%, respectively. It is sure that this contact binary is a foreground object of the globular cluster 47 Tuc. By comparing to the Dartmouth model isochrones, the masses and the radii of the component stars are estimated, as well as the age and the distance. They are, M1 ¼ 0:97M; M2 ¼ 0:16M; R1 ¼ 1:05R; R2 ¼ 0:49R, Age = 7.0 Gyr and Dist = 1570 pc. The cool spots model is introduced in the BV-band photometric solutions because of the observed O’Connell effect. We compare the two modeling cool spots in size, temperature and position, thinking that they could be the same one. It can be explained as that a cool spot, which is on the surface of the more massive component, shifted 126 degrees along the latitude line from west to east in a year. This phenomenon may be called as starspot migration. Fil: Liu L.. Chinese Academy Of Sciences; República de China Fil: Qian, S. B.. Chinese Academy Of Sciences; República de China Fil: Fernandez Lajus, Eduardo Eusebio. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico la Plata. Instituto de Astrofísica de la Plata; Argentina. Universidad Nacional de la Plata. Facultad de Ciencias Astronómicas y Geofísicas; Argentina |
description |
Three light curves of the eclipsing binary V95–47 Tuc were obtained in serval nights from December, 2010 to November, 2011. By analyzing the light curves with the 2010 version of the W-D code, the mass-ratio and the fill-out factor of V95 are determined as 0.164 and 53.8%, respectively. It is sure that this contact binary is a foreground object of the globular cluster 47 Tuc. By comparing to the Dartmouth model isochrones, the masses and the radii of the component stars are estimated, as well as the age and the distance. They are, M1 ¼ 0:97M; M2 ¼ 0:16M; R1 ¼ 1:05R; R2 ¼ 0:49R, Age = 7.0 Gyr and Dist = 1570 pc. The cool spots model is introduced in the BV-band photometric solutions because of the observed O’Connell effect. We compare the two modeling cool spots in size, temperature and position, thinking that they could be the same one. It can be explained as that a cool spot, which is on the surface of the more massive component, shifted 126 degrees along the latitude line from west to east in a year. This phenomenon may be called as starspot migration. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/10763 Liu L.; Qian, S. B.; Fernandez Lajus, Eduardo Eusebio; Identification of a deep contact binary in the field of the globular cluster 47 Tuc; Elsevier Science; New Astronomy; 26; 1; 1-2014; 116-120 1384-1076 |
url |
http://hdl.handle.net/11336/10763 |
identifier_str_mv |
Liu L.; Qian, S. B.; Fernandez Lajus, Eduardo Eusebio; Identification of a deep contact binary in the field of the globular cluster 47 Tuc; Elsevier Science; New Astronomy; 26; 1; 1-2014; 116-120 1384-1076 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.newast.2013.07.004 info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S138410761300081X |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier Science |
publisher.none.fl_str_mv |
Elsevier Science |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
_version_ |
1844613201847648256 |
score |
13.070432 |