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Table 5
Orbital decay and eccentricity damping timescales of the Kepler-21 system obtained through Eqs. (66) and (67) by evaluating the corresponding equation of motion at 
for different values of the rheological parameters and the eccentricity.
| e | τM [yr] | α | τa [ × 106 yr] | τe [ × 106 yr] |
|---|---|---|---|---|
| 0.01 | 10 | 0.2 | 751.32 | 0.101 |
| 0.02 | 10 | 0.2 | 629.23 | 0.345 |
| 0.02 | 50 | 0.2 | 662.78 | 0.361 |
| 0.02 | 100 | 0.2 | 675.81 | 0.367 |
| 0.02 | 10 | 0.15 | 617.57 | 0.339 |
| 0.02 | 10 | 0.3 | 679.20 | 0.368 |
| 0.1 | 10 | 0.2 | 98.955 | 1.542 |
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