A charge-coupled device photometric study of south hemispheric contact binary ae phoenicis
The complete charge-coupled device light curves in B, V, R, and I bands of the short-period binary system, AE Phe, are presented. It is found that the light curves of AE Phe belong to typical EW-type light variation. Photometric solutions were derived by using the 2003 version of the Wilson-Devinney...
Guardado en:
| Autores principales: | , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
| Publicado: |
2009
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| Materias: | |
| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/82773 |
| Aporte de: |
| id |
I19-R120-10915-82773 |
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| record_format |
dspace |
| institution |
Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
| collection |
SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Exactas Binaries: close Binaries: eclipsing Stars: evolution Stars: individual (AE Phe) |
| spellingShingle |
Ciencias Exactas Binaries: close Binaries: eclipsing Stars: evolution Stars: individual (AE Phe) He, J. J. Qian, S. B. Fernández Lajús, Eduardo Fariña, Cecilia A charge-coupled device photometric study of south hemispheric contact binary ae phoenicis |
| topic_facet |
Ciencias Exactas Binaries: close Binaries: eclipsing Stars: evolution Stars: individual (AE Phe) |
| description |
The complete charge-coupled device light curves in B, V, R, and I bands of the short-period binary system, AE Phe, are presented. It is found that the light curves of AE Phe belong to typical EW-type light variation. Photometric solutions were derived by using the 2003 version of the Wilson-Devinney code. It showed that AE Phe is a W-subtype shallow-contact system (f = 14.6%(0.5%)) with a mass ratio of q = 2.5491(0.0092). The temperature difference between the two components is 227 K. Analysis of the O - C curve suggests that the period of AE Phe shows a long-term continuous increase at a rate of dP/dt = +6.17(0.44) × 10-8 days year-1. The long-term period increase, the marginal-contact configuration, and the astrophysical parameters of the binary system, all suggest that it is a shallow-contact binary undergoing a thermal relaxation oscillation evolving into a detached binary. |
| format |
Articulo Articulo |
| author |
He, J. J. Qian, S. B. Fernández Lajús, Eduardo Fariña, Cecilia |
| author_facet |
He, J. J. Qian, S. B. Fernández Lajús, Eduardo Fariña, Cecilia |
| author_sort |
He, J. J. |
| title |
A charge-coupled device photometric study of south hemispheric contact binary ae phoenicis |
| title_short |
A charge-coupled device photometric study of south hemispheric contact binary ae phoenicis |
| title_full |
A charge-coupled device photometric study of south hemispheric contact binary ae phoenicis |
| title_fullStr |
A charge-coupled device photometric study of south hemispheric contact binary ae phoenicis |
| title_full_unstemmed |
A charge-coupled device photometric study of south hemispheric contact binary ae phoenicis |
| title_sort |
charge-coupled device photometric study of south hemispheric contact binary ae phoenicis |
| publishDate |
2009 |
| url |
http://sedici.unlp.edu.ar/handle/10915/82773 |
| work_keys_str_mv |
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