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Table 4
Input parameters adopted for the orbital integration of Terzan 2.
| Parameter | Value | References |
|---|---|---|
| Radial velocity (RV) | + 133.46 ± 0.69 km s−1 | (1) |
| Proper motion in RA (µα cos δ) | −2.141 ± 0.03 mas yr−1 | (2) |
| Proper motion in Dec (µδ) | −6.255 ± 0.03 mas yr−1 | (2) |
| Heliocentric distance (d⊙) | 7.8 ± 0.3 kpc | (1) |
| Bar pattern speed (Ωbar) | 41 ± 10 km s−1 kpc−1 | (3) |
| Solar position (R⊙, Z⊙) | 8.2 kpc, 25 pc | (4) |
| Solar velocity vector | (U, V, W) = (11.1, 245.8, 7.8) km s−1 | (4) |
Notes. (1) Baumgardt & Vasiliev (2021); (2) Gaia Collaboration (2021); (3) Sanders et al. (2019); (4) Fernández-Trincado et al. (2020b).
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