Parameters of the anomalous velocity features.
| Feature | RA0a, Dec.0a ( ) | V0a (km s−1) | Db (arcsec, kpc) | ΔVc (km s−1) | Mmold (107 M⊙) | EKe (1053 erg) | E0f (1053 erg) | τg (107 yr) |
| F1 | 12 42 00, 32 32 15 | 500 | 22, 0.95 | 52 | 2.3 | 1.6 | 4.1 | 1.8 |
| F2 | 12 42 03, 32 32 13 | 593 | 44, 1.9 | 73 | 5.3 | 7.1 | 57 | 2.5 |
| F3 | 12 42 14, 32 32 40 | 718 | 33, 1.4 | 62 | 9.0 | 8.6 | 18 | 2.2 |
| F4 | 12 42 10, 32 32 29 | 593 | 22, 0.95 | 42 | 3.0 | 1.3 | 3.0 | 2.2 |
| F5 | 12 42 07, 32 32 25 | 468 | 44, 1.9 | 73 | 2.4 | 3.2 | 57 | 2.5 |
| Feature | RA0a, Dec.0a () | V0a (km s−1) | Db (arcsec, kpc) | ΔVc (km s−1) | Mmold (107 M⊙) | EKe (1053 erg) | E0f (1053 erg) | τg (107 yr) |
| F1 | 12 42 00, 32 32 15 | 500 | 22, 0.95 | 52 | 2.3 | 1.6 | 4.1 | 1.8 |
| F2 | 12 42 03, 32 32 13 | 593 | 44, 1.9 | 73 | 5.3 | 7.1 | 57 | 2.5 |
| F3 | 12 42 14, 32 32 40 | 718 | 33, 1.4 | 62 | 9.0 | 8.6 | 18 | 2.2 |
| F4 | 12 42 10, 32 32 29 | 593 | 22, 0.95 | 42 | 3.0 | 1.3 | 3.0 | 2.2 |
| F5 | 12 42 07, 32 32 25 | 468 | 44, 1.9 | 73 | 2.4 | 3.2 | 57 | 2.5 |
aCentral position and velocity of the feature, from the centroid of the emission after smoothing spatially and in velocity using both the major axis slices as well as offset slices (see Fig. 9) as needed. Positional uncertainties are approximately ±10 arcsec and the velocity uncertainty is ±10 km s−1.
bDiameter of the feature (angular and linear) measured from the original resolution data. Uncertainties are as in Footnote a.
cFull velocity extent of the feature measured from the original resolution data. Uncertainties are as in Footnote a.
dTotal molecular mass (including heavy elements), adopting R3−2/1−0 = 0.47 (Section 3.4); the result is an average between the smoothed and unsmoothed data. The uncertainty is ≈±0.5 × 107 M⊙ which represents a typical flux in the background over a similar-sized region.
eKinetic energy of the feature from EK = (1/2) M(Δ V/2)2.
fInput energies, from equation (3).
gCharacteristic age of the feature, from τ=D/(ΔV).
Parameters of the anomalous velocity features.
| Feature | RA0a, Dec.0a () | V0a (km s−1) | Db (arcsec, kpc) | ΔVc (km s−1) | Mmold (107 M⊙) | EKe (1053 erg) | E0f (1053 erg) | τg (107 yr) |
| F1 | 12 42 00, 32 32 15 | 500 | 22, 0.95 | 52 | 2.3 | 1.6 | 4.1 | 1.8 |
| F2 | 12 42 03, 32 32 13 | 593 | 44, 1.9 | 73 | 5.3 | 7.1 | 57 | 2.5 |
| F3 | 12 42 14, 32 32 40 | 718 | 33, 1.4 | 62 | 9.0 | 8.6 | 18 | 2.2 |
| F4 | 12 42 10, 32 32 29 | 593 | 22, 0.95 | 42 | 3.0 | 1.3 | 3.0 | 2.2 |
| F5 | 12 42 07, 32 32 25 | 468 | 44, 1.9 | 73 | 2.4 | 3.2 | 57 | 2.5 |
| Feature | RA0a, Dec.0a () | V0a (km s−1) | Db (arcsec, kpc) | ΔVc (km s−1) | Mmold (107 M⊙) | EKe (1053 erg) | E0f (1053 erg) | τg (107 yr) |
| F1 | 12 42 00, 32 32 15 | 500 | 22, 0.95 | 52 | 2.3 | 1.6 | 4.1 | 1.8 |
| F2 | 12 42 03, 32 32 13 | 593 | 44, 1.9 | 73 | 5.3 | 7.1 | 57 | 2.5 |
| F3 | 12 42 14, 32 32 40 | 718 | 33, 1.4 | 62 | 9.0 | 8.6 | 18 | 2.2 |
| F4 | 12 42 10, 32 32 29 | 593 | 22, 0.95 | 42 | 3.0 | 1.3 | 3.0 | 2.2 |
| F5 | 12 42 07, 32 32 25 | 468 | 44, 1.9 | 73 | 2.4 | 3.2 | 57 | 2.5 |
aCentral position and velocity of the feature, from the centroid of the emission after smoothing spatially and in velocity using both the major axis slices as well as offset slices (see Fig. 9) as needed. Positional uncertainties are approximately ±10 arcsec and the velocity uncertainty is ±10 km s−1.
bDiameter of the feature (angular and linear) measured from the original resolution data. Uncertainties are as in Footnote a.
cFull velocity extent of the feature measured from the original resolution data. Uncertainties are as in Footnote a.
dTotal molecular mass (including heavy elements), adopting R3−2/1−0 = 0.47 (Section 3.4); the result is an average between the smoothed and unsmoothed data. The uncertainty is ≈±0.5 × 107 M⊙ which represents a typical flux in the background over a similar-sized region.
eKinetic energy of the feature from EK = (1/2) M(Δ V/2)2.
fInput energies, from equation (3).
gCharacteristic age of the feature, from τ=D/(ΔV).
