Table 2
Photometric and structural parameters of the new dwarf candidates in the surveyed region of the M 101 group complex.
| Name | g tot | r tot | M r | (g − r)0,tot | μ 0,r | r 0,r | n r | ⟨ μ ⟩ eff,r | r eff,r | log reff,r |
| mag | mag | mag | mag | mag arcsec-2 | arcsec | mag arcsec-2 | arcsec | log pc | ||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) | (8) | (9) | (10) | (11) |
|
|
||||||||||
| M 101 subgroup | ||||||||||
| dw1343+58 | 15.54 | 15.17 | −14.0 | 0.370 | 18.93 ± 2.26 | 0.04 ± 0.77 | 0.27 ± 0.12 | 24.45 | 28.6 | 2.98 |
| dw1355+51 | 18.76 | 18.09 | −11.1 | 0.666 | 23.09 ± 0.17 | 3.67 ± 0.69 | 0.78 ± 0.07 | 24.44 | 7.44 | 2.39 |
| dw1408+56 | 18.01 | 17.50 | −11.7 | 0.507 | 23.28 ± 0.06 | 5.48 ± 0.38 | 0.89 ± 0.06 | 24.71 | 11.0 | 2.57 |
| dw1412+56 | 19.46 | 18.75 | −10.5 | 0.702 | 24.26 ± 0.16 | 5.64 ± 0.80 | 1.22 ± 0.29 | 25.29 | 8.08 | 2.43 |
| dw1416+57 | 19.06 | 18.83 | −10.4 | 0.227 | 24.86 ± 0.08 | 10.19 ± 0.47 | 2.16 ± 0.31 | 25.16 | 7.35 | 2.39 |
| dw1446+58 | 18.46 | 17.90 | −11.3 | 0.559 | 23.87 ± 0.12 | 7.62 ± 0.74 | 1.27 ± 0.13 | 24.66 | 8.97 | 2.48 |
| M 51 subgroup | ||||||||||
| dw1313+46 | 17.63 | 17.36 | −12.3 | 0.274 | 23.53 ± 0.04 | 9.33 ± 0.26 | 1.73 ± 0.07 | 23.78 | 7.69 | 2.50 |
| dw1327+51 | 19.34 | 18.79 | −10.9 | 0.550 | 24.16 ± 0.09 | 6.36 ± 0.51 | 1.29 ± 0.15 | 24.74 | 6.19 | 2.41 |
| dw1338+50 | 19.15 | 18.35 | −11.3 | 0.809 | 25.41 ± 0.07 | 16.16 ± 0.66 | 2.43 ± 0.42 | 25.62 | 11.3 | 2.67 |
| dw1340+45 | 18.28 | 18.14 | −11.5 | 0.136 | 23.48 ± 0.06 | 5.76 ± 0.29 | 1.25 ± 0.18 | 24.24 | 6.61 | 2.44 |
| M 63 subgroup | ||||||||||
| dw1255+40 | 18.41 | 17.82 | −11.9 | 0.594 | 25.88 ± 0.14 | 25.14 ± 2.48 | 1.34 ± 0.42 | 26.49 | 21.6 | 2.97 |
| dw1303+42 | 18.06 | 17.29 | −12.5 | 0.770 | 24.13 ± 0.06 | 12.19 ± 0.54 | 1.61 ± 0.12 | 24.56 | 11.3 | 2.69 |
| dw1305+38 | 17.69 | 17.51 | −12.3 | 0.178 | 21.57 ± 1.37 | 1.31 ± 1.87 | 0.59 ± 0.23 | 24.41 | 9.57 | 2.62 |
| dw1305+41 | 17.06 | 16.70 | −13.1 | 0.354 | 23.12 ± 0.06 | 8.21 ± 0.53 | 0.94 ± 0.05 | 24.14 | 12.2 | 2.72 |
| dw1308+40 | 18.19 | 17.54 | −12.2 | 0.650 | 23.84 ± 0.07 | 8.81 ± 0.60 | 1.11 ± 0.07 | 24.74 | 11.0 | 2.68 |
Notes. The quantities listed are as follows: (1) name of candidate; (2+3) total apparent magnitude in the g and r bands; (4) absolute r band magnitude. For candidates of the M 101 subgroup, the mean distance of the M 101 group (6.95 Mpc) is assumed; for candidates of the M 51 and M 63 subgroups, the distances of these major galaxies is 8.6 and 9.0 Mpc, respectively; (5) integrated g − r color; (6) Sérsic central surface brightness in the r band; (7) Sérsic scale length in the r band; (8) Sérsic curvature index in the r band; (9) mean effective surface brightness in the r band; (10) effective radius in the r band. These photometric data are used in the Sect. 6.1 to assess the M 101 group complex membership of the candidates; (11) the logarithm of the effective radius in the r band, converted to pc with a distance assumption according to the subgroup.
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