SPECTROSCOPIC INVESTIGATIONS OF THE POLARIS (α UMi) SYSTEM: RADIAL VELOCITY MEASUREMENTS, NEW ORBIT, AND COMPANION INFLUENCE FOR THE CEPHEID POLARIS Aa PULSATION ACTIVITY

SPECTROSCOPIC INVESTIGATIONS OF THE POLARIS (α UMi) SYSTEM: RADIAL VELOCITY MEASUREMENTS, NEW ORBIT, AND COMPANION INFLUENCE FOR THE CEPHEID POLARIS Aa PULSATION ACTIVITY

Thirty three spectra of the Polaris system obtained in August–December 2019 and February–April 2020 at the 0.81m telescope of the Three College Observatory (TCO, North Carolina, USA) were used to determine the radial velocities (RV) and effective temperature of the Cepheid Polaris Aa. These new data...

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Bibliographic Details
Main Authors: I. A. Usenko, A. S. Miroshnichenko, S. Danford, V. V. Kovtyukh, D. G. Turner
Format: Article
Language:English
Published: Odessa I. I. Mechnykov National University 2020-11-01
Series:Odessa Astronomical Publications
Online Access:http://oap.onu.edu.ua/article/view/216289

Internet

http://oap.onu.edu.ua/article/view/216289

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