Table 2
Principal results of this work: equatorial and galactic components of the estimated acceleration of the Solar System, with uncertainties and correlations.
| Quantity | Value | Uncertainty |
|---|---|---|
| Equatorial components | ||
| gx [ μas yr−1] | − 0.07 | 0.41 |
| gy [ μas yr−1] | − 4.30 | 0.35 |
| gz [ μas yr−1] | − 2.64 | 0.36 |
| α | 269.1° | 5.4° |
| δ | − 31.6° | 4.1° |
| Correlations | ||
 |
+ 0.001 | |
 |
− 0.094 | |
 |
− 0.025 | |
| ρα,δ | − 0.081 | |
| Galactic components | ||
| gX [ μas yr−1] | + 5.04 | 0.35 |
| aX [ km s−1 Myr−1] | + 7.32 | 0.51 |
| gY [ μas yr−1] | − 0.10 | 0.36 |
| aY [ km s−1 Myr−1] | − 0.14 | 0.52 |
| gZ [ μas yr−1] | − 0.29 | 0.41 |
| aZ [ km s−1 Myr−1] | − 0.43 | 0.60 |
| l | 358.9° | 4.1° |
| b | − 3.3° | 4.6° |
| Correlations | ||
 |
+ 0.036 | |
 |
− 0.014 | |
 |
− 0.079 | |
| ρl,b | − 0.078 | |
| | g | [ μas yr−1] | 5.05 | 0.35 |
| | a | [ km s−1 Myr−1] | 7.33 | 0.51 |
| [10−10 m s−2] | 2.32 | 0.16 |
Notes. All uncertainties are ±1σ estimates obtained using bootstrap resampling. The absolute values of the acceleration are computed as the Euclidean norm of the estimated vector, and may be biased as discussed in Appendix A.
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