Table 1
Distance and velocity range of the main H I clouds and the overlapping MBM clouds.
| Velocity | Dist.(a) | Dist.(b) | cloud | (α, δ) | MBM Dist.(c) | MBM Vel.(d) | |
|---|---|---|---|---|---|---|---|
| (km s−1) | (pc) | (pc) | J2000 | (pc) | (km s−1) | ||
| Superbubble components | |||||||
| North rim | [4, 25] | [150, 400] | 140 ± 40 | MBM16 | (49. °8, 11. °6) |  |
7.4 |
| 170 ± 40 | MBM 17(e) | (55. °2, 21. °3) |  |
7.9 | |||
| MBM 107 | (66. °9, 18. °9) |  |
8.6 | ||||
| MBM 108 | (67. °2, 18. °5) |  |
7.6 | ||||
| MBM 18 | (60. °6, 1. °3) |  |
8.0 | ||||
| MBM 109 | (67. °9, 18. °1) |  |
6.6 | ||||
| MBM 106 | (65. °7, 19. °5) |  |
8.5 | ||||
| South loop | [−3.8, 7.8] | [150, 300] | |||||
| East shell | [−30.8, −2.5] | [200, 300] | |||||
| West rim | [−2.5, 15.6] | [150, 250] | 180 ± 30 | MBM 15 | (48. °2, −9. °4) |  |
4.4 |
| 210 ± 40 | |||||||
| Other complexes | |||||||
| MBM 20 | [0, 4] | [150, 250] | 180 ± 40 | MBM 20 | (68. °8, −14. °2) |  |
0.3 |
| MBM 22 | MBM 22 | (76. °2, −18. °3) |  |
4.5 | |||
| Eridu cirrus | [−13, −2] | [200, 400] | 210 ± 30 | ||||
| North Taurus | [−6, 4] | [250, 450] | 370 ± 50(f) | MBM 13 | (44. °9, 17. °2) |  |
−5.7 |
| MBM 11 | (42. °8, 19. °5) |  |
−6.6 | ||||
| MBM 12 | (44. °2, 19. °5) |  |
−5.3 | ||||
| MBM 14 | (48. °0, 20. °0) |  |
−2.2 | ||||
| Cetus | [−20, −5] | [250, 400] | 370 ± 50(f) | MBM 9 | (36. °6, 11. °9) |  |
−13.0 |
| G203-37 | [8, 15] | [300, 400] | (66. °0, −9. °0) | ||||
Notes. (a) From the reddening front method described in this paper. (b)From Lallement et al. (2018). (c) From Zucker et al. (2019). The first errors are statistical, and the second give the systematic uncertainties. (d) From Magnani et al. (1985). (e)The association of MBM 17 cloud with north rim is uncertain because of the velocity confusion in this direction. (f) It is uncertain whether the association should be with Cetus or North Taurus.
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