Table A.1.
List of 30 especially promising astrometric microlensing events.
| # | Source ID | Sou_source ID | ST | M | θE | σθE | T − 2000 | σT | dmin | σdmin | δθc, lum | σδθc, lum | δθ+ | σδθ+ | Δm | σΔm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| M⊙ | mas | mas | Jyear | Jyear | mas | mas | mas | mas | mas | mas | mag | mag | ||||
| 1 | 478978296199510912 | 478978296204261248 | WD | 0.65 | 15.5 | 1.8 | 14.6923 | 0.0024 | 50.7 | 1.1 | 1.78 | 0.27 | 4.34 | 0.67 | 0.0055 | 0.0023 |
| 2 | 4733794485572154752 | 4733794485572154624 | BD | 0.07 | 8.9 | 1.9 | 16.0744 | 0.0099 | 21.1 | 7.7 | 1.68 | 0.61 | 3.2 | 1.3 | 0.021 | 0.027 |
| 3 | 5862333044226605056 | 5862333048529855360 | MS | 0:400 | 4:66 | 0:24 | 19:417 | 0:012 | 6:4 | 3:5 | 0:184 | 0:069 | 2:44 | 0:76 | 0:011 | 0:015 |
| 4 | 5840411363658156032 | 5840411359350016128 | MS | 0.174 | 3.56 | 0.18 | 19.8392 | 0.0029 | 5.8 | 1.3 | 0.505 | 0.079 | 1.69 | 0.27 | 0.032 | 0.020 |
| 5 | 4687445500635789184 | 4687445599404851456 | WD | 0.65 | 13.6 | 1.7 | 21.5001 | 0.0062 | 70.3 | 1.9 | 0.98 | 0.16 | 2.52 | 0.41 | 0.00101 | 0.00044 |
| 6 | 4248799013208327424 | 4248799013215266176 | MS | 0.219 | 4.10 | 0.23 | 29.876 | 0.039 | 0.9 | 10.0 | 0.9 | 3.8 | 3.7 | 4.4 | 0.9 | 7.8 |
| 7 | 5918299904067162240 | 5918299908365843840 | MS | 0.113 | 6.93 | 0.35 | 30.2480 | 0.0032 | 6.3 | 2.8 | 2.17 | 0.17 | 4.46 | 0.84 | 0.28 | 0.22 |
| 8 | 6130500670360253312 | 6130500567281038080 | MS | 0.318 | 2.16 | 0.33 | 35.162 | 0.072 | 0.2 | 7.4 | 0.4 | 4.3 | 2.0 | 3.5 | 1.0 | 24.0 |
| 9 | 5863711561290571008 | 5863711561290570112 | MS | 0.199 | 3.39 | 0.17 | 35.333 | 0.014 | 5.0 | 3.4 | 1.179 | 0.087 | 1.70 | 0.69 | 0.13 | 0.22 |
| 10 | 4472832130942575872 | 4472836292758713216 | MS | 0.184 | 28.7 | 1.5 | 35.76441 | 0.00073 | 335.0 | 13.0 | 0.0802 | 0.0065 | 2.43 | 0.20 | 3.69E-6 | 9.3E-7 |
| 11 | 6074397471079635328 | 6074397471080379776 | WD | 0.65 | 8.3 | 1.1 | 36.72 | 0.26 | 9.5 | 40.0 | 1.7 | 2.6 | 5.0 | 10.0 | 0.10 | 0.87 |
| 12 | 5556349476589422336 | 5556349472293892224 | WD | 0.65 | 7.94 | 0.96 | 37.173 | 0.077 | 15.0 | 47.0 | 2.1 | 3.2 | 3.7 | 8.2 | 0.06 | 0.57 |
| 13 | 5886942661427781760 | 5886942661374132096 | MS | 0.180 | 3.69 | 0.19 | 39.266 | 0.049 | 0.2 | 13.0 | 0.5 | 8.0 | 3.5 | 5.9 | 1.0 | 35.0 |
| 14 | 5715906236031073280 | 5715906236031079040 | WD | 0.65 | 7.85 | 0.91 | 40.049 | 0.034 | 20.0 | 6.9 | 2.06 | 0.51 | 2.71 | 0.84 | 0.026 | 0.030 |
| 15 | 5332606522595645952 | 5332606277747043456 | WD | 0.65 | 33.7 | 3.9 | 40.7896 | 0.0021 | 139.6 | 4.9 | 0.0470 | 0.0077 | 7.7 | 1.3 | 3.4E-5 | 1.6E-5 |
| 16 | 4118914220102650624 | 4118914185707335040 | MS | 0.319 | 7.11 | 0.36 | 41.383 | 0.014 | 0.1 | 13.0 | 0.07 | 5.1 | 7.1 | 6.5 | 0.8 | 92.0 |
| 17 | 428051391503714432 | 428051391509474816 | WD | 0.65 | 8.18 | 0.97 | 43.61 | 0.11 | 47.0 | 29.0 | 1.27 | 0.71 | 1.39 | 0.83 | 0.0017 | 0.0040 |
| 18 | 5605383430285597696 | 5605383537671689856 | WD | 0.65 | 15.0 | 1.7 | 43.9735 | 0.0091 | 207.6 | 4.5 | 1.04 | 0.17 | 1.08 | 0.18 | 5.6E-5 | 2.7E-5 |
| 19 | 6282457918962299776 | 6282457815883084928 | WD | 0.65 | 19.9 | 2.3 | 45.466 | 0.012 | 22.0 | 10.0 | 1.53 | 0.43 | 11.7 | 3.0 | 0.032 | 0.033 |
| 20 | 3365063724883180288 | 3365062964671171712 | MS | 0.119 | 11.08 | 0.56 | 45.607 | 0.011 | 119.0 | 14.0 | 0.0095 | 0.0013 | 1.02 | 0.14 | 1.46E-6 | 7.1E-7 |
| 21 | 1822711900548572544 | 1822711900548570624 | MS | 0.212 | 2.37 | 0.15 | 49.80 | 0.27 | 0.3 | 44.0 | 0.3 | 17.0 | 2.0 | 20.0 | 0.8 | 100.0 |
| 22 | 4203875751318123904 | 4203875648238893696 | BD | 0.07 | 5.1 | 1.1 | 53.538 | 0.018 | 11.0 | 22.0 | 1.2 | 1.5 | 2.1 | 3.1 | 0.04 | 0.22 |
| 23 | 4117081643422165120 | 4117081467277401344 | WD | 0.65 | 11.7 | 1.4 | 56.982 | 0.027 | 66.0 | 25.0 | 1.45 | 0.54 | 1.99 | 0.77 | 0.0014 | 0.0021 |
| 24 | 6126095232211644160 | 6126095300931121024 | WD | 0.65 | 5.68 | 0.73 | 57.33 | 0.27 | 4.6 | 32.0 | 1.52 | 0.22 | 3.8 | 9.8 | 0.2 | 2.9 |
| 25 | 6426625402561169024 | 6426625402559392896 | MS | 0.272 | 4.94 | 0.25 | 58.252 | 0.017 | 4.5 | 4.2 | 1.12 | 0.20 | 3.2 | 1.3 | 0.16 | 0.28 |
| 26 | 5243594081269535872 | 5243594253068231168 | MS | 0.175 | 14.77 | 0.74 | 58.8661 | 0.0076 | 208.4 | 5.8 | 0.00767 | 0.00059 | 1.042 | 0.079 | 3.93E-7 | 8.9E-8 |
| 27 | 4484348145137238016 | 4484348145137243904 | BD | 0.07 | 3.39 | 0.72 | 60.595 | 0.097 | 4.0 | 28.0 | 1.06 | 0.96 | 1.8 | 6.3 | 0.1 | 2.1 |
| 28 | 6082407619449932032 | 6082407619449930880 | MS | 0.560 | 6.04 | 0.31 | 62.295 | 0.050 | 0.07 | 8.8 | 0.07 | 3.8 | 6.0 | 4.4 | 0.8 | 69.0 |
| 29 | 2025071788687899776 | 2025071792959778688 | WD | 0.65 | 8.06 | 0.94 | 62.64 | 0.20 | 0.3 | 30.0 | 2.0 | 27.0 | 8.0 | 14.0 | 2.0 | 101.0 |
| 30 | 4293315765165489536 | 4293315662070462080 | BD | 0.07 | 9.8 | 2.1 | 65.727 | 0.051 | 79.0 | 76.0 | 0.0059 | 0.0059 | 1.19 | 1.2 | 2.3E-6 | 8.8E-6 |
Notes. The table lists the Gaia Source ID of lens and background star, the stellar type (ST) of the lens, its mass (M), the Einstein radius θE, the Julian year T after 2000 of the closest approach, with uncertainty, the minimum separation (dmin), as well as the expected shift of the combined centre of light (δθc, lum), the shift of the brightest image only (δθ+), and the expected magnification (Δm). The corresponding errors are indicated by σ…. The online table (http://dc.zah.uni-heidelberg.de/amlensing/q2/q/form) will also list positions, proper motions, parallaxes, and magnitudes for the source and lens stars, the timescale, the impact parameter in units of Einstein radii, the expected shift of the centre of light assuming a dark lens, as well as the predicted values as seen from L2. For the background source of event #2, only a two-parameter solution exists. Events #3 and #4 (light grey) are the photometric events in 2019. Event #10 (dark grey) is the event of Barnard’s star in 2035.
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