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Table 4

Parameters used for the estimation of the SNRs’ properties.

Remnant/Distance Center (RA, Dec) Radius Region Model kT [keV] n0f−1/2 [10−3 cm−3] R [pc]
Single SNR at D = 300 pc
Monogem ring 107.08°, 13.50° 11.97° annulus Fig. 12 0.11–0.17
D = 300 pc (l, b) ~ (202.7°, 9.8°) (median) Fig. A.1 3.1–7.2 63

Two SNRs at D = 300 pc
Monogem ring 104.15°, 15.30° 11.00° diffuse_S Table D.1 0.11–0.13 5.5–8.6 58
(l, b) ~ (199.8°, 8.0°)
G205.6+12.4 110.33°, 12.94° 8.82° arc_outer_E + arc_SE Table 1 0.28–0.45 2.0–4.3 47

G190.4+12.5 104.24°, 25.56° 3.07° Table 2 0.22 − 0.85
D = 1000 pc 1.9–3.3 53
D = 1500 pc 1.5–2.7 80
D = 2000 pc 1.3–2.3 107

Monoceros Loop SNRs
Monoceros Loop(†) 99.75°, 6.50° 1.83° Table 3(‡) 0.87–1.13
D = 1500 pc (l, b) ~ (205.5°, 0.5°) 2.3–3.7 48

PKS 0646+06(†) 102.16°, 6.42° 0.42° Table 3(‡) 0.64–1.05
D = 4000 pc (l, b) ~ (206.9°, 2.3°) 4.9–8.7 29

Notes. For the radius, we assume an uncertainty of 10%, while the temperature and density uncertainties are based on the 90% CI of the spectral analysis results. For the density, f denotes the filling factor of the plasma. Galactic coordinates are listed with (l, b) where an alternative name was used. (†)Position and size adopted from Green (2019). (‡)Hot VAPEC plasma component used.

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