Table 1.
Parameters adopted for the Aquarius (DDO 210) dwarf galaxy.
| Parameter | Value | Reference |
|---|---|---|
| αJ2000 | 20h46m51.8s | (1) |
| δJ2000 | −12 ° 50′53″ | (1) |
| Ellipticity | 0.5 ± 0.1 | (3) |
| PA* (°) | 99 ± 1 | (3) |
| Rh(′) | 1.10 ± 0.03 | (2) |
| MV | −10.6 ± 0.3 | (3) |
| E(B − V) | 0.045 | (5) |
| (m − M)0 | 24.95 ± 0.10 | (4) |
| D⊙ (kpc) | 977 ± 45 | (5) |
| PAHI (°) | 77.3 ± 15.2 | (6) |
| Vsys (km s−1) | −142.2 ± 1.8 | (7) |
| σ* (km s−1) |  |
(7) |
| k (km s−1 arcmin−1) |  |
(7) |
| PArot (°) | 139.0 |
(7) |
| ⟨[Fe/H]⟩ (dex) | −1.59 ± 0.05 | (7) |
| MAD[Fe/H] (dex) | 0.20 | (7) |
Notes. PA* is the position angle of the stellar component (measured from north to east), while PAHI is the PA of the kinematic major axis of the HI component; Vsys and σ* are respectively the systemic velocity and velocity dispersion of the stellar component; k and PArot are the velocity gradient of the stellar component and its position angle. All measurements were performed for the preferred kinematical model of the stellar component (see Sect. 4.2). ⟨[Fe/H]⟩ is the median of the distribution of individual [Fe/H] values, while MAD[Fe/H] is the MAD of the distribution (see Sect. 5).
References. (1) van den Bergh (1959); (2) McConnachie et al. (2006); (3) McConnachie (2012); (4) Cole et al. (2014); (5) Schlafly & Finkbeiner (2011); (6) Iorio et al. (2017); (7) this work.
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