THE GLOBULAR CLUSTER NGC 6981: VARIABLE STARS POPULATION, PHYSICAL PARAMETERS AND ASTROMETRY
We present the results of time-series CCD photometry of the globular cluster NGC 6981 for which no previous CCD photometry exist. Accurate photometry was achieved by the technique of difference image analysis. This allows to correctly classify the known variable stars, corroborate their variability...
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| Опубликовано в:: | Revista Mexicana de Astronomía y Astrofísica |
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| Главные авторы: | , , , |
| Формат: | Artigo |
| Язык: | Inglês |
| Опубликовано: |
Universidad Nacional Autónoma de México
2011
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| Предметы: | |
| Online-ссылка: | https://www.redalyc.org/articulo.oa?id=57121297120 |
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