Table 4
Maximum apparent displacement δθ± and amplification A± of the two images of S stars formed by the gravitational lens during the conjunctions with α Cen A and B.
| Date | L a | S b | θLD[mas] | φ[km] | ρmin [″] | δθ+ [mas] | A+ [%] | δθ− [mas] | A− [%] |
|
|
|||||||||
| 2021-05-03 | B | S1 | 0.0120.002 | 2400400 | 0.205 ± 0.177 |
|
|
|
|
| 2023-04-27 | A | S2 | 0.0250.003 | 5000600 | 1.643 ± 0.112 |
|
100 | − | − |
| 2023-12-12 | B | S3 | 0.0180.002 | 3600400 | 1.354 ± 0.186 |
|
100 | − | − |
| 2024-10-26 | B | S4 | 0.0080.003 | 1600600 | 2.433 ± 0.119 |
|
100 | − | − |
| 2028-05-06 | A | S5 | 0.470.05 | 9500010000 | 0.015 ± 0.135 |
|
|
|
|
| 2031-05-25 | B | S6 | 0.0100.003 | 2000600 | 0.269 ± 0.277 |
|
|
|
|
Notes. The displacements are relative to the non-deflected (pre-lensing) positions. We also list the angular sizes θLD of the S stars, and their projected linear diameters φ at α Centauri. The error bars are given in super/subscripts position next to each value.
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