Open Access
Table 4
Light curve parameters for OGLE-2018-BLG-1647.
| Parameter | Close | Wide | 1L2S |
|---|---|---|---|
| χ2/d.o.f. | 9871.51/9855 | 9854.69/9855 | 9882.81/9855 |
| t0 − 8300 | 73.570 ± 0.038 | 73.520± 0.040 | 74.391 ± 0.061 |
| t0,2 − 8300 | 69.121 ± 0.006 | ||
| u0 (10−2) | 10.01 ± 0.44 | 11.00± 0.54 | 11.63 ± 0.63 |
| u0,2 (10−2) | 0.37 ± 0.31 | ||
| tE (days) | 54.67 ± 1.85 | 52.31 ± 1.92 | 57.27 ± 2.21 |
| S | 0.794 ± 0.011 | 1.433 ± 0.014 | |
| q (10−3) | 9.96 ± 0.65 | 9.98 ± 0.65 | |
| 〈log q〉 | −2.003 ± 0.028 | −2.001 ± 0.028 | |
| α (rad) | 5.394± 0.008 | 5.365 ± 0.008 | |
| ρ (10−3) | 3.66 ± 1.31 | 5.18 ± 1.04 | |
| ρ2 (10−3) | |||
| qf | 0.0362 ± 0.0028 | ||
| IS | 21.01 ± 0.05 | 20.91 ± 0.06 | 21.07 ± 0.05 |
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