Abstract
The O - C curve of the eclipsing binary U Sagittae was analyzed using the Kalimeris method. A period decrease was indicated by this curve. The observed period P(E) and its rate of change dP/dE as a function of time were calculated. To reveal any cyclic period variations, the P(E) function was subjected to Fourier analysis. A cyclic period change of 9.5 yr duration with amplitude ΔP = 6.385 × 10-6 days was obtained. The mass transfer rate for the system was calculated, and these results have been used to discuss period variability.
| Original language | English |
|---|---|
| Pages (from-to) | 1302-1306 |
| Journal | Astronomical Journal |
| Volume | 133 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - Apr 2007 |
| MoE publication type | A1 Journal article-refereed |
Keywords
- binaries: eclipsing
- stars: individual: U Sagittae