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Modern kinematical data on radial velocities and proper motions taken from GAIA Dr.1 TGAS catalog are used to improve the distance scale of Cepheids. Short period Cepheids are shown to have shorter distance scale as compared to long period sample. From the composite sample of 225 Cepheids all kinematical parameters are derived including the rotation curve and the parametes of the spiral pattern which are in very good agreement with the results for 130 maser sources.
№ | Имя | Описание | Имя файла | Размер | Добавлен |
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1. | Презентация | Презентация доклада | Rastorguev_etal_Byurakan-2017.pdf | 5,2 МБ | 29 сентября 2017 [rastor] |