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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2020
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| Online Access: | https://www.redalyc.org/articulo.oa?id=57171663007 https://www.redalyc.org/journal/571/57171663007/ https://www.redalyc.org/journal/571/57171663007/html/ https://www.redalyc.org/journal/571/57171663007/57171663007.epub https://www.redalyc.org/journal/571/57171663007/movil |
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| _version_ | 1866573015356014592 |
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| author | A. E. Abdelaziz |
| author_facet | A. E. Abdelaziz |
| contents | An astrometric and photometric study of the intermediate-age open cluster NGC 2158 and its eclipsing binary NBN201578 A. E. Abdelaziz Y. H. M. Hendy A. Shokry S. M. Saad F. Y. Kamal K. A. Edris Física, Astronomía y Matemáticas stars binaries NGC 2158 eclipsing NBN201578 We present a photometric and astrometric analysis of the NGC 2158 cluster using Gaia DR2 and 2MASS data. The cluster age, color excess, intrinsic distance modulus and distance are calculated to be t = 2.240 ± 0.260Gyr, E(B − V ) =0.420±0.050mag, (m−M)⊙=12.540±0.130mag and d⊙=3224±200pc respectively. The photometric analysis and light curve modelling of the proposed eclipsing binary member NBN201578 is performed using the latest version of the WilsonDevinney (W-D) code. The solutions show that the system is an over-contact binary with a secondary component filling its Roche lobe, with a mass ratio q = 0.262. The primary and the secondary components of the system consist of two late spectral types K1 and K2 respectively. The membership of NBN201578 is discussed using two independent methods, and we find that NBN201578 is an interloper and not a member of NGC 2158. 2020 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57171663007 https://www.redalyc.org/journal/571/57171663007/ https://www.redalyc.org/journal/571/57171663007/html/ https://www.redalyc.org/journal/571/57171663007/57171663007.epub https://www.redalyc.org/journal/571/57171663007/movil 10.22201/ia.01851101p.2020.56.02.07 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.56 |
| format | Artículo científico |
| id | redalyc_57171663007 |
| language | en |
| publishDate | 2020 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | An astrometric and photometric study of the intermediate-age open cluster NGC 2158 and its eclipsing binary NBN201578 A. E. Abdelaziz Física, Astronomía y Matemáticas stars binaries NGC 2158 eclipsing NBN201578 An astrometric and photometric study of the intermediate-age open cluster NGC 2158 and its eclipsing binary NBN201578 A. E. Abdelaziz Y. H. M. Hendy A. Shokry S. M. Saad F. Y. Kamal K. A. Edris Física, Astronomía y Matemáticas stars binaries NGC 2158 eclipsing NBN201578 We present a photometric and astrometric analysis of the NGC 2158 cluster using Gaia DR2 and 2MASS data. The cluster age, color excess, intrinsic distance modulus and distance are calculated to be t = 2.240 ± 0.260Gyr, E(B − V ) =0.420±0.050mag, (m−M)⊙=12.540±0.130mag and d⊙=3224±200pc respectively. The photometric analysis and light curve modelling of the proposed eclipsing binary member NBN201578 is performed using the latest version of the WilsonDevinney (W-D) code. The solutions show that the system is an over-contact binary with a secondary component filling its Roche lobe, with a mass ratio q = 0.262. The primary and the secondary components of the system consist of two late spectral types K1 and K2 respectively. The membership of NBN201578 is discussed using two independent methods, and we find that NBN201578 is an interloper and not a member of NGC 2158. 2020 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57171663007 https://www.redalyc.org/journal/571/57171663007/ https://www.redalyc.org/journal/571/57171663007/html/ https://www.redalyc.org/journal/571/57171663007/57171663007.epub https://www.redalyc.org/journal/571/57171663007/movil 10.22201/ia.01851101p.2020.56.02.07 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Num.2 Vol.56 |
| title | An astrometric and photometric study of the intermediate-age open cluster NGC 2158 and its eclipsing binary NBN201578 |
| topic | Física, Astronomía y Matemáticas stars binaries NGC 2158 eclipsing NBN201578 |
| url | https://www.redalyc.org/articulo.oa?id=57171663007 https://www.redalyc.org/journal/571/57171663007/ https://www.redalyc.org/journal/571/57171663007/html/ https://www.redalyc.org/journal/571/57171663007/57171663007.epub https://www.redalyc.org/journal/571/57171663007/movil |