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Table 1

H2 gas properties of the objects around Tycho’s SNR.

Object Column densitya Gas massa Column densityb Gas massb
(×1020 cm-2) (×103MSun) (×1020 cm-2) (×103MSun)

SE cloud 11.9 ± 2.4 21.9 ± 4.4 6.1 ± 1.2 3.0 ± 0.6
NE cloud 10.7 ± 2.1 6.9 ± 1.4 7.7 ± 1.5 1.0 ± 0.2
West cloud 8.6 ± 1.7 9.3 ± 1.9 6.6 ± 1.3 0.5 ± 0.1
StreamSE 7.9 ± 1.6 0.49 ± 0.10 3.9 ± 0.8 0.05 ± 0.01
StreamNE 7.8 ± 1.6 0.56 ± 0.11 4.7 ± 0.9 0.05 ± 0.01
StreamNW 5.3 ± 1.1 0.48 ± 0.10 2.9 ± 0.6 0.01 ± 0.005
Inner rim 8.9 ± 1.8 1.3 ± 0.3 4.3 ± 0.9 0.1 ± 0.02
Cavity 1.5 ± 0.3 2.7 ± 0.5 0.9 ± 0.2 2.0 ± 0.4

Notes.

(a)

Results estimated from the MWISP 12CO observations and CO-to-H2 factor (1.8 × 1020 cm-2 K-1 km-1 s; see text).

(b)

Results estimated from the MWISP 12CO and 13CO observations, assuming LTE condition.

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