Numerical Investigation of Third-Body Behavior in Dry and Wet Environments under Plane Shearing

2016 ◽  
Vol 39 (8) ◽  
pp. 1497-1508 ◽  
Author(s):  
Christoph Pieper ◽  
Tobias Oschmann ◽  
Darius Markauskas ◽  
Andreas Kempf ◽  
Alfons Fischer ◽  
...  
1992 ◽  
Vol 151 ◽  
pp. 383-386
Author(s):  
Chun-Hwey Kim

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.


2016 ◽  
Vol 136 (3) ◽  
pp. 141-146 ◽  
Author(s):  
Akira Kawasaki ◽  
Kenichi Kubota ◽  
Ikkoh Funaki ◽  
Yoshihiro Okuno

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