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Table 1

Parameters of observed and modeled SNRs, selected according to the criterion of − 0.7 ≤ HR ≤  −0.3.

D m D min D max

(pc) (pc) (pc)

Observed SNRs
All 137 SNRs 49.6 ± 28.8
82 X-ray SNRs 40.3 ± 20.6 8 111 261
48 SNRs 39.9 ± 22.6 8 111 197
Modeled SNRs
Run1 41.0 ± 20.6 16 109 179
Run2 39.2 ± 21.4 16.1 124 88
Run3 39.0 ± 19.5 12.1 104 380
Avrg over 20 runs 39.1 ± 18.4 13.1 107 210

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