Table 2.
Position of the lensed images (Col. 1) of MG B2016+112 at Epoch 1 (Cols. 2 and 3) and Epoch 2 (Cols. 4 and 5) relative to the lensing galaxy, which is at (0, 0).
| Image | α1 (arcsec) | δ1 (arcsec) | α2 (arcsec) | δ2 (arcsec) | Δα (mas) | Δδ (mas) |
|---|---|---|---|---|---|---|
| A1 | −1.74766 ± 0.00014 | + 1.77316 ± 0.00038 | −1.74769 ± 0.00014 | +1.77268 ± 0.00030 | −0.03 ± 0.19 | +0.5 ± 0.5 |
| A2+A3 | −1.73731 ± 0.00025 | +1.77656 ± 0.00146 | −1.73769 ± 0.00014 | +1.77718 ± 0.00030 | −0.4 ± 0.3 | +0.6 ± 1.5 |
| B1 | +1.25914 ± 0.00008 | +0.27090 ± 0.00019 | +1.25801 ± 0.00003 | +0.26999 ± 0.00007 | −1.1 ± 0.1 | −0.9 ± 0.2 |
| B2+B3+B5 | +1.26013 ± 0.00022 | +0.27376 ± 0.00103 | +1.26979 ± 0.00009 | +0.27075 ± 0.00015 | +9 ± 3 | −3 ± 1 |
| C11 | +0.26659 ± 0.00075 | −1.46016 ± 0.00063 | +0.26245 ± 0.00027 | −1.46123 ± 0.00019 | −4.1 ± 0.7 | +1.1 ± 0.7 |
| C12 | +0.30288 ± 0.00054 | −1.45690 ± 0.00029 | +0.29720 ± 0.00030 | −1.45748 ± 0.00018 | −5.7 ± 0.6 | −0.6 ± 0.3 |
| C22 | +0.34617 ± 0.00046 | −1.45106 ± 0.00028 | +0.34885 ± 0.00026 | −1.45082 ± 0.00013 | +2.7 ± 0.5 | +0.2 ± 0.3 |
| C21 | +0.43238 ± 0.00020 | −1.43703 ± 0.00025 | +0.43306 ± 0.00008 | −1.43697 ± 0.00009 | +0.7 ± 0.2 | +0.1 ± 0.3 |
Notes. The position of the images is given by the centroid of the Gaussian fit performed using IMFIT. The offsets in right ascension and declination (Cols. 6 and 7) are from the difference between Epoch 1 and Epoch 2.
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