Observed stars: the K magnitudes are obtained from 2MASS photometry while I and V are from Kleyna et al. (1998). The preliminary estimates for the photometric temperature T(phot) from (V−I) and the surface gravity are calculated assuming a metallicity of [Fe/H] = −2 dex, mass of 0.8 M⊙ and distance of 68 kpc. The T(spec), log g, vmic and [Fe/H] are the values found by iteration of the best atmospheric models used to calculate the spectroscopic abundances (see the text for details).
| Target . | I . | V . | K . | α J2000 . | δ (J2000) . | Teff (phot) . | Teff (spec) . | log g . | vmic . | [Fe/H] . | vr (km s−1) . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UMI718 | 16.30 | 17.46 | 14.967 | 15:02:25.58 | 66:55:25.39 | 4563 | 4540 | 1.1 | 2.25 | −2.12 | −247.6 |
| UMI396 | 15.59 | 16.94 | 14.018 | 15:05:52.04 | 66:41:30.05 | 4312 | 4290 | 0.5 | 2.35 | −2.13 | −228 |
| UMI446 | 16.96 | 18.07 | 15.131 | 15:02:01.53 | 66:49:22.36 | 4640 | 4580 | 1.6 | 2.80 | −2.67 | −246 |
| Target . | I . | V . | K . | α J2000 . | δ (J2000) . | Teff (phot) . | Teff (spec) . | log g . | vmic . | [Fe/H] . | vr (km s−1) . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UMI718 | 16.30 | 17.46 | 14.967 | 15:02:25.58 | 66:55:25.39 | 4563 | 4540 | 1.1 | 2.25 | −2.12 | −247.6 |
| UMI396 | 15.59 | 16.94 | 14.018 | 15:05:52.04 | 66:41:30.05 | 4312 | 4290 | 0.5 | 2.35 | −2.13 | −228 |
| UMI446 | 16.96 | 18.07 | 15.131 | 15:02:01.53 | 66:49:22.36 | 4640 | 4580 | 1.6 | 2.80 | −2.67 | −246 |
Observed stars: the K magnitudes are obtained from 2MASS photometry while I and V are from Kleyna et al. (1998). The preliminary estimates for the photometric temperature T(phot) from (V−I) and the surface gravity are calculated assuming a metallicity of [Fe/H] = −2 dex, mass of 0.8 M⊙ and distance of 68 kpc. The T(spec), log g, vmic and [Fe/H] are the values found by iteration of the best atmospheric models used to calculate the spectroscopic abundances (see the text for details).
| Target . | I . | V . | K . | α J2000 . | δ (J2000) . | Teff (phot) . | Teff (spec) . | log g . | vmic . | [Fe/H] . | vr (km s−1) . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UMI718 | 16.30 | 17.46 | 14.967 | 15:02:25.58 | 66:55:25.39 | 4563 | 4540 | 1.1 | 2.25 | −2.12 | −247.6 |
| UMI396 | 15.59 | 16.94 | 14.018 | 15:05:52.04 | 66:41:30.05 | 4312 | 4290 | 0.5 | 2.35 | −2.13 | −228 |
| UMI446 | 16.96 | 18.07 | 15.131 | 15:02:01.53 | 66:49:22.36 | 4640 | 4580 | 1.6 | 2.80 | −2.67 | −246 |
| Target . | I . | V . | K . | α J2000 . | δ (J2000) . | Teff (phot) . | Teff (spec) . | log g . | vmic . | [Fe/H] . | vr (km s−1) . |
|---|---|---|---|---|---|---|---|---|---|---|---|
| UMI718 | 16.30 | 17.46 | 14.967 | 15:02:25.58 | 66:55:25.39 | 4563 | 4540 | 1.1 | 2.25 | −2.12 | −247.6 |
| UMI396 | 15.59 | 16.94 | 14.018 | 15:05:52.04 | 66:41:30.05 | 4312 | 4290 | 0.5 | 2.35 | −2.13 | −228 |
| UMI446 | 16.96 | 18.07 | 15.131 | 15:02:01.53 | 66:49:22.36 | 4640 | 4580 | 1.6 | 2.80 | −2.67 | −246 |
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