Table 4
MAGPIS SNR candidates in comparison with THOR sources, Green SNR and WISE H ii regions.
| SNR candidate | THOR source | Green SNR | WISE H ii | Diam. | Distance | α | Δα | |
| [′] | [kpc] | |||||||
|
|
||||||||
| G16.358−0.183 | G016.352-00.179 | 2.8 | – | – | ||||
| G17.017-0.033 | G17.030-0.069 | G017.0-00.0 | G017.032-00.052b | 4.0 | −0.19c | 0.64 | ||
| G17.336-0.139 | G17.335-0.139 | G017.336-00.146 | 1.8 | 0.09 | 0.29 | |||
| G18.150-0.172a | G18.193-0.174 | G018.1-00.1 | G018.195-00.171b | 7.0 | 6.3 ± 0.5 | −0.37 | 0.10 | |
| G18.171-0.213 | – | −0.68 | 0.25 | |||||
| G18.107-0.134 | – | −0.72 | 0.25 | |||||
| G18.254-0.308a | G18.270-0.289 | G018.253-00.298 | 3.5 | 4.3 ± 0.6 | −0.46 | 0.05 | ||
| G18.638-0.292 | G18.610-0.316 | G018.6-00.2 | 4.0 | 4.6 ± 0.6 | 0.17 | 0.22 | ||
| G18.758-0.074a | G18.760-0.072 | 1.6 | 4.9 ± 0.6 | −0.35 | 0.08 | |||
| G19.461+0.144a | G19.492+0.135 | G019.489+00.135b | 6.0 | 6.8−17.5 | 0.15 | 0.02 | ||
| G19.475+0.173 | – | −0.30 | 0.12 | |||||
| G19.580-0.240a | G19.610-0.235 | G019.554-00.248b | 3.2 | 6.3 ± 0.5 | 0.95 | 0.01 | ||
| G19.555-0.230 | – | −0.14 | 0.28 | |||||
| G19.592+0.025a | G19.592+0.028 | G019.594+00.024 | 0.8 | −0.41 | 0.19 | |||
| G19.610-0.120a | G19.614-0.133 | G019.629-00.095 | 4.5 | 11.6 ± 0.5 | −0.45 | 0.11 | ||
| G19.660-0.220a | G19.610-0.235 | G019.675-00.226b | 4.5 | 0.95 | 0.01 | |||
| G19.691-0.204 | – | −0.41 | 0.28 | |||||
| G20.467+0.150 | G20.502+0.155 | G020.4+00.1 | 5.5 | −0.54 | 0.33 | |||
| G21.557-0.103 | G021.5-00.1 | G021.560-00.108 | 4.0 | – | – | |||
| G21.642+0.000 | G21.632-0.007 | G021.634-00.003 | 2.8 | −0.28 | 0.49 | |||
| G22.383+0.100 | G22.360+0.064 | G022.357+00.064b | 7.0 | −0.72 | 0.18 | |||
| G22.758-0.492a | G22.760-0.478 | G022.761-00.492 | 3.8 | 5.1 ± 0.6 | −0.04 | 0.04 | ||
| G22.992-0.358 | G22.980-0.370 | G022.988-00.360b | 3.8 | 5.0 ± 0.5 | −0.51 | 0.18 | ||
| G22.974-0.345 | – | −0.12c | 0.60 | |||||
| G23.567-0.033 | G23.541-0.039 | G023.572-00.020b | 9.5 | 6.4 ± 0.7 | −0.03c | 0.14 | ||
| G23.585+0.030 | – | 0.36 | 0.14 | |||||
| G23.645-0.028 | – | 0.63c | 0.46 | |||||
| G24.180+0.217 | G24.200+0.192 | G024.185+00.211b | 5.2 | 0.13c | 0.41 | |||
| G24.197+0.243 | – | −0.09c | 0.15 | |||||
| G24.166+0.251 | – | −0.03 | 0.22 | |||||
| G25.222+0.292 | G25.220+0.286 | G025.220+00.289 | 2.0 | −0.00 | 0.24 | |||
| G27.133+0.033a | G27.158+0.063 | 11.0 | 6.1−16.2 | −0.63 | 0.28 | |||
| G27.119-0.027 | – | −0.39 | 0.21 | |||||
| G28.375+0.203 | G028.376+00.208b | 10.0 | – | – | ||||
| G28.517+0.133 | 14.0 | 6.2−15.9 | – | – | ||||
| G28.558-0.008a | G28.569+0.020 | 3.0 | 6.5−15.9 | −0.15 | 0.09 | |||
| G28.767-0.425 | 9.5 | – | – | |||||
| G29.067-0.675 | G029.088-00.675 | 8.0 | – | – | ||||
| G29.078+0.454a | G29.079+0.458 | 0.7 | −0.19 | 0.08 | ||||
| G29.367+0.100a | G29.372+0.104 | 9.0 | 5.8−15.8 | −0.40 | 0.14 | |||
| G30.849+0.133a | G30.854+0.151 | G030.847+00.140 | 2.2 | 6.7−15.6 | −0.11 | 0.04 | ||
| G30.866+0.114 | – | 0.71 | 0.06 | |||||
| G30.839+0.117 | – | −1.09 | 0.19 | |||||
| G31.058+0.483a | G31.057+0.497 | G031.054+00.491b | 4.5 | 6.6−15.5 | −0.08 | 0.10 | ||
| G31.034+0.459 | – | −0.34 | 0.19 | |||||
| G31.610+0.335a | G31.598+0.330 | G031.610+00.335 | 3.1 | 6.6−15.5 | 0.19 | 0.19 | ||
| G31.821-0.122 | G31.823-0.117 | G031.806-00.115 | 1.8 | −0.10 | 0.24 | |||
Notes. The SNR candidates are given in Helfand et al. (2006). Since the SNR candidates can be clumpy, several THOR sources can be found within one MAGPIS SNR candidate so we list all corresponding THOR sources. The associated SNR names taken from Green (2014) are given, as well as associated WISE H ii regions given in Anderson et al. (2014). The given H ii regions can be associated with the SNR, but they can also be foreground or background objects. Figure 22 shows the size for each H ii region. The diameter of the MAGPIS SNR candidates is taken from Helfand et al. (2006), and the distance is determined via H i absorption and taken from Johanson & Kerton (2009). The spectral index α is measured for the peak position of the THOR source (see Sect. 3.7) and can vary significantly within the source (see Fig. 22).
Spectral index map is shown in Fig. 22.
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