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Analysis of Period Changes of YY Eridani

Published online by Cambridge University Press:  07 August 2017

Chun-Hwey Kim
Chun-Hwey Kim*
Affiliation:
Institute of Space Science and Astronomy 36–1 Whaamdong, Yuseonggu Daejeon 305-348 Korea

Abstract

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Four times of minimum lights from six nights photoelectric observations of YY Eri during the observing seasons from 1983 to 1984 are derived. With these and previously published photoelectric minima, new light elements are determined. A detailed numerical investigation of times of minima shows that the orbital period has changed sinusoidally with a period of about 24 years. These changes of period are investigated in terms of two plausible causes : a light-time effect due to an unseen third body and asymmetries of light curves due to stellar activities of one component or both.

Type
Oral and Contributed Papers
Information
Symposium - International Astronomical Union , Volume 151: Evolutionary Processes in Interacting Binary Stars , 1992 , pp. 383 - 386
Copyright
Copyright © Kluwer 1992 

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