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Table 4.
Relative space motion among the various clouds of the Taurus complex.
| Molecular cloud 1 | Molecular cloud 2 | Δu | Δv | Δw | ΔVbulk | Δd |
|---|---|---|---|---|---|---|
| (km s−1) | (km s−1) | (km s−1) | (km s−1) | (pc) | ||
| L 1517, L 1519 | L 1544 | 3.0 ± 0.7 | −2.4 ± 0.6 | −1.4 ± 0.5 | 4.1 ± 0.7 | 20.1 ± 1.7 |
| L 1517, L 1519 | L 1495 | 1.5 ± 0.6 | −2.6 ± 0.5 | 0.5 ± 0.4 | 3.0 ± 0.5 | 36.5 ± 1.2 |
| L 1517, L 1519 | B 213, B 216 | 3.3 ± 0.5 | −1.5 ± 0.5 | −3.3 ± 0.4 | 4.9 ± 0.5 | 22.7 ± 0.8 |
| L 1517, L 1519 | B 215 | 2.0 ± 0.8 | −4.2 ± 0.7 | −0.0 ± 0.6 | 4.7 ± 0.7 | 37.6 ± 2.0 |
| L 1517, L 1519 | Heiles Cloud 2 (cluster 14) | 1.1 ± 0.6 | −2.5 ± 0.5 | −1.2 ± 0.4 | 3.0 ± 0.5 | 22.7 ± 1.7 |
| L 1517, L 1519 | Heiles Cloud 2 (cluster 15) | 0.7 ± 0.6 | −4.0 ± 0.5 | −1.1 ± 0.4 | 4.2 ± 0.5 | 25.5 ± 1.7 |
| L 1517, L 1519 | L 1535, L 1529, L 1531, L 1524 | 1.5 ± 0.6 | −3.6 ± 0.5 | −0.8 ± 0.4 | 3.9 ± 0.5 | 36.3 ± 1.3 |
| L 1517, L 1519 | L 1536 | 1.8 ± 0.6 | −0.8 ± 0.5 | −3.4 ± 0.4 | 4.0 ± 0.5 | 24.7 ± 0.6 |
| L 1517, L 1519 | L 1551 | 1.1 ± 0.7 | 0.2 ± 0.5 | −3.0 ± 0.5 | 3.2 ± 0.5 | 37.9 ± 0.8 |
| L 1544 | L 1495 | −1.4 ± 0.6 | −0.2 ± 0.4 | 1.9 ± 0.4 | 2.4 ± 0.4 | 50.9 ± 2.1 |
| L 1544 | B 213, B 216 | 0.4 ± 0.5 | 0.9 ± 0.5 | −1.9 ± 0.4 | 2.1 ± 0.4 | 30.2 ± 1.7 |
| L 1544 | B 215 | −1.0 ± 0.8 | −1.8 ± 0.6 | 1.4 ± 0.5 | 2.5 ± 0.6 | 49.4 ± 2.8 |
| L 1544 | Heiles Cloud 2 (cluster 14) | −1.8 ± 0.6 | −0.1 ± 0.5 | 0.2 ± 0.4 | 1.8 ± 0.5 | 33.7 ± 2.6 |
| L 1544 | Heiles Cloud 2 (cluster 15) | −2.2 ± 0.6 | −1.6 ± 0.5 | 0.3 ± 0.4 | 2.7 ± 0.6 | 36.6 ± 2.6 |
| L 1544 | L 1535, L 1529, L 1531, L 1524 | −1.5 ± 0.6 | −1.2 ± 0.4 | 0.6 ± 0.3 | 2.0 ± 0.5 | 47.2 ± 2.3 |
| L 1544 | L 1536 | −1.1 ± 0.6 | 1.6 ± 0.5 | −2.0 ± 0.4 | 2.8 ± 0.5 | 24.0 ± 1.8 |
| L 1544 | L 1551 | −1.9 ± 0.7 | 2.6 ± 0.5 | −1.6 ± 0.4 | 3.6 ± 0.5 | 39.0 ± 1.9 |
| L 1495 | B 213, B 216 | 1.8 ± 0.3 | 1.0 ± 0.3 | −3.8 ± 0.2 | 4.3 ± 0.2 | 30.9 ± 1.7 |
| L 1495 | B 215 | 0.5 ± 0.6 | −1.7 ± 0.5 | −0.5 ± 0.4 | 1.8 ± 0.5 | 7.9 ± 0.5 |
| L 1495 | Heiles Cloud 2 (cluster 14) | −0.4 ± 0.3 | 0.1 ± 0.3 | −1.7 ± 0.2 | 1.8 ± 0.2 | 17.8 ± 1.4 |
| L 1495 | Heiles Cloud 2 (cluster 15) | −0.8 ± 0.5 | −1.4 ± 0.3 | −1.6 ± 0.2 | 2.3 ± 0.3 | 16.1 ± 1.1 |
| L 1495 | L 1535, L 1529, L 1531, L 1524 | −0.0 ± 0.4 | −1.0 ± 0.2 | −1.3 ± 0.1 | 1.6 ± 0.2 | 11.9 ± 0.3 |
| L 1495 | L 1536 | 0.3 ± 0.4 | 1.7 ± 0.3 | −4.0 ± 0.2 | 4.3 ± 0.2 | 35.3 ± 1.5 |
| L 1495 | L 1551 | −0.4 ± 0.5 | 2.8 ± 0.3 | −3.5 ± 0.3 | 4.5 ± 0.3 | 30.0 ± 0.5 |
| B 213, B 216 | B 215 | −1.3 ± 0.6 | −2.7 ± 0.5 | 3.2 ± 0.5 | 4.4 ± 0.5 | 32.0 ± 2.4 |
| B 213, B 216 | Heiles Cloud 2 (cluster 14) | −2.2 ± 0.3 | −1.0 ± 0.3 | 2.0 ± 0.2 | 3.1 ± 0.3 | 21.4 ± 1.8 |
| B 213, B 216 | Heiles Cloud 2 (cluster 15) | −2.6 ± 0.4 | −2.5 ± 0.3 | 2.2 ± 0.2 | 4.2 ± 0.3 | 25.1 ± 1.8 |
| B 213, B 216 | L 1535, L 1529, L 1531, L 1524 | −1.8 ± 0.4 | −2.1 ± 0.3 | 2.5 ± 0.2 | 3.7 ± 0.3 | 33.2 ± 1.7 |
| B 213, B 216 | L 1536 | −1.5 ± 0.3 | 0.7 ± 0.3 | −0.2 ± 0.3 | 1.6 ± 0.3 | 13.1 ± 0.8 |
| B 213, B 216 | L 1551 | −2.2 ± 0.5 | 1.7 ± 0.3 | 0.3 ± 0.3 | 2.8 ± 0.4 | 28.7 ± 1.2 |
| B 215 | Heiles Cloud 2 (cluster 14) | −0.9 ± 0.6 | 1.8 ± 0.5 | −1.2 ± 0.5 | 2.3 ± 0.5 | 15.9 ± 2.4 |
| B 215 | Heiles Cloud 2 (cluster 15) | −1.3 ± 0.7 | 0.2 ± 0.5 | −1.0 ± 0.4 | 1.7 ± 0.6 | 13.3 ± 2.1 |
| B 215 | L 1535, L 1529, L 1531, L 1524 | −0.5 ± 0.7 | 0.7 ± 0.5 | −0.8 ± 0.4 | 1.1 ± 0.5 | 5.1 ± 0.6 |
| B 215 | L 1536 | −0.2 ± 0.6 | 3.4 ± 0.5 | −3.4 ± 0.5 | 4.8 ± 0.5 | 33.4 ± 2.3 |
| B 215 | L 1551 | −0.9 ± 0.7 | 4.4 ± 0.5 | −3.0 ± 0.5 | 5.4 ± 0.5 | 23.9 ± 1.2 |
| Heiles Cloud 2 (cluster 14) | Heiles Cloud 2 (cluster 15) | −0.4 ± 0.4 | −1.5 ± 0.3 | 0.1 ± 0.2 | 1.6 ± 0.3 | 3.9 ± 2.0 |
| Heiles Cloud 2 (cluster 14) | L 1535, L 1529, L 1531, L 1524 | 0.3 ± 0.4 | −1.1 ± 0.3 | 0.4 ± 0.2 | 1.2 ± 0.3 | 14.4 ± 1.8 |
| Heiles Cloud 2 (cluster 14) | L 1536 | 0.7 ± 0.4 | 1.7 ± 0.3 | −2.2 ± 0.3 | 2.9 ± 0.3 | 21.2 ± 1.8 |
| Heiles Cloud 2 (cluster 14) | L 1551 | −0.1 ± 0.5 | 2.7 ± 0.4 | −1.8 ± 0.3 | 3.2 ± 0.3 | 20.5 ± 0.5 |
| Heiles Cloud 2 (cluster 15) | L 1535, L 1529, L 1531, L 1524 | 0.7 ± 0.5 | 0.4 ± 0.3 | 0.3 ± 0.1 | 0.9 ± 0.5 | 11.0 ± 1.6 |
| Heiles Cloud 2 (cluster 15) | L 1536 | 1.1 ± 0.5 | 3.2 ± 0.3 | −2.4 ± 0.2 | 4.1 ± 0.3 | 24.6 ± 1.8 |
| Heiles Cloud 2 (cluster 15) | L 1551 | 0.3 ± 0.6 | 4.2 ± 0.4 | −1.9 ± 0.3 | 4.6 ± 0.3 | 20.9 ± 0.5 |
| L 1535, L 1529, L 1531, L 1524 | L 1536 | 0.4 ± 0.5 | 2.7 ± 0.3 | −2.7 ± 0.2 | 3.8 ± 0.3 | 33.0 ± 1.6 |
| L 1535, L 1529, L 1531, L 1524 | L 1551 | −0.4 ± 0.6 | 3.8 ± 0.3 | −2.2 ± 0.3 | 4.4 ± 0.3 | 22.6 ± 0.6 |
| L 1536 | L 1551 | −0.8 ± 0.5 | 1.0 ± 0.4 | 0.5 ± 0.3 | 1.4 ± 0.4 | 20.8 ± 1.4 |
Notes. We provide the relative motion for each component of the spatial velocity (in the sense molecular cloud 1 minus molecular cloud 2), the resulting bulk motion between the clouds, and their relative distance computed from the XYZ coordinates of the cloud centers (see Table 2).
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