Table 1.
Confirmed NGC 474 dwarf galaxy system.
| Name | RA | Dec | Exp. time | Vel. | [M/H] | Age | M/L | S/N | MV |
|---|---|---|---|---|---|---|---|---|---|
| deg | deg | s | km/s | dex | Myr | M⊙/L⊙ | mag | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) |
| MATLAS-20 (a) | 19.584400 | 3.433197 | 2628 | 2409.0 ± 14.6 | −1.70 ± 0.23 | 12.6 ± 1.5 | 2.2 ± 0.2 | 9.1 | −12.2 |
| MATLAS-21 | 19.594114 | 3.327721 | 5256 | 2161.9 ± 24.4 | −2.16 ± 0.19 | 13.4 ± 2.1 | 2.0 ± 0.2 | 8.0 | −12.3 |
| MATLAS-24 | 19.848000 | 3.239670 | 2628 | 2216.8 ± 5.1 | −1.36 ± 0.12 | 8.4 ± 1.9 | 1.6 ± 0.4 | 18.3 | −13.0 |
| MATLAS-25 | 19.858900 | 3.359683 | 2628 | 2339.6 ± 13.6 | −1.90 ± 0.19 | 13.7 ± 2.6 | 1.8 ± 0.4 | 10.8 | −12.8 |
| MATLAS-26 | 19.930422 | 3.246573 | 2628 | 2263.8 ± 12.6 | −1.36 ± 0.20 | 11.7 ± 2.1 | 2.0 ± 0.3 | 9.0 | −12.3 |
| MATLAS-27 | 20.062317 | 3.616693 | 2628 | 2500.1 ± 11.3 | −1.52 ± 0.18 | 8.2 ± 2.3 | 1.5 ± 0.3 | 9.3 | −12.7 |
| MATLAS-28 | 20.119040 | 3.608794 | 5913 | 2508.2 ± 8.0 | −1.5 ± 0.13 | 10.5 ± 2.3 | 1.8 ± 0.3 | 9.4 | −12.4 |
| MATLAS-29 (a) | 20.146580 | 3.145582 | 2628 | 2153.4 ± 10.4 | −1.62 ± 0.10 | 9.2 ± 2.0 | 1.9 ± 0.5 | 13.2 | −13.7 |
| MATLAS-35 (a) | 20.494549 | 3.971204 | 2628 | 2193.8 ± 18.6 | −2.14 ± 0.24 | 6.4 ± 3.8 | 1.2 ± 0.5 | 9.3 | −12.9 |
| LEDA 4765 (b) | 19.909685 | 3.261206 | – | 2235 ± 31 | – | – | – | – | |
| LEDA 1244578 (b) | 19.965508 | 3.077404 | – | 2172 ± 16 | – | – | – | – | −16.0 |
Notes. References for the values presented in this row are
Some comments on the different columns: (4) the exposure time is the total integrated exposure time on target and may include several observing blocks. (8) The M/L ratio is the stellar mass-to-light ratio derived from the pPXF fitting of the spectrum. (9) The signal-to-noise is measured on the spectrum in a region between 6600 and 6800 Å. (10) Extinction corrected (Schlafly & Finkbeiner 2011) absolute magnitudes, estimated from the g and r band magnitudes of Poulain et al. (2021) for the MATLAS dwarfs, and Wang et al. (2018) for LEDA 1244578.
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