Period study of the binary star SW Cygni |
| |
Authors: | U S Chaubey |
| |
Institution: | (1) Uttar Pradesh State Observatory, Naini Tal, India |
| |
Abstract: | The O−C curve of SW Cyg between 1880 and 1977 is presented and discussed. It is found that the orbital period undergoes a
systematic change, becoming greater with time. In addition, a periodic oscillation of amplitude 0
.
d
015 with period of 43.8 years is superimposed on this general trend. It is concluded that the increase in the period is due
to a transfer of mass from the secondary star to the primary and the periodic oscillation is due to the light time effect
of the third body of mass functionf(m)=0.006M
⊙. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|