Table 1.
Observational information and mean radial velocities (
) for RSGs in NGC 330.
| ID | Number of epochs | J | H | K | SpT |  ± σ |
|
|---|---|---|---|---|---|---|---|
| HARPS | MUSE | (km s−1) | |||||
| Spectroscopic sample | |||||||
| A3 | 16 | 6 | 12.019 | 11.469 | 11.374 | G3 Ib | 151.5 ± 0.5 |
| A6 | 10 | 6 | 10.969 | 10.217 | 10.087 | K1 Iab | 155.3 ± 1.1 |
| A7 | 0 | 6 | 10.193 | 9.408 | 9.182 | G6 Ib | 152.4 ± 0.9 |
| A9 | 9 | 6 | 11.778 | 11.072 | 10.874 | K1 Ib | 154.4 ± 0.9 |
| A14 | 9 | 6 | 10.908 | 10.15 | 9.932 | K1 Ib | 154.6 ± 1.9 |
| A27 | 0 | 6 | 11.509 | 10.636 | 10.474 | K1 Ib | 149.1 ± 2.4 |
| A42* | 6 | 6 | 11.76 | 11.03 | 10.855 | K0 Ib-II | 153.9 ± 0.6 |
| A45* | 0 | 6 | 11.592 | 10.916 | 10.719 | G3.5 Ia-Iab | 152.0 ± 2.2 |
| A46 | 0 | 6 | 11.643 | 10.952 | 10.653 | K0 Ib | 157.5 ± 1.4 |
| A52* | 0 | 6 | 11.517 | 11.009 | 10.745 | K0 Ib | 162.1 ± 4.0 |
| A57* | 0 | 6 | 11.296 | 10.660 | 10.412 | G7 Ia-Iab | 154.6 ± 1.5 |
| B15 | 7 | 0 | 12.38 | 11.64 | 11.518 | K0 Ib | 149.8 ± 0.6 |
| B31 | 7 | 1 | 12.233 | 11.491 | 11.339 | K II | 107.8 ± 14.6 |
| B40 | 7 | 0 | 10.92 | 10.199 | 10.032 | G7 Iab-Ib | 153.1 ± 1.1 |
| B42 | 8 | 0 | 11.842 | 11.158 | 10.991 | G8 Ib-II | 151.9 ± 0.5 |
| No spectra | |||||||
| B10 | 0 | 0 | 10.784 | 10.024 | 9.864 | G8.5 Ia-Iab | 148.0 ±4.0 |
| B19 | 0 | 0 | 11.155 | 10.437 | 10.291 | – | – |
| B20 | 0 | 0 | 11.995 | 11.421 | 11.316 | – | – |
| ARP III-210 | 0 | 0 | 11.934 | 11.226 | 11.084 | – | – |
| ARP III-214 | 0 | 0 | 12.135 | 11.440 | 11.276 | – | – |
Notes. Targets selected by our Gaia criteria without HARPS or MUSE spectra are listed in the No spectra section. Literature identification from Robertson (1974, Rob74) and Arp (1959, ARP). See Table B.1 for more information on identification. An asterisk identifies a potential Galactic contaminant based on Gaia data. Spectral type and RV data for B10 are from González-Fernández et al. (2015) because no HARPS or MUSE spectra are available.
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