Table 1
Measured positions and fluxes.
| Pos | Position offseta | Tintb | rms Tmbc | ∫Tdν [K km s-1] | Flux ratio | Other designations | ||
| Δx [′′] | Δy [′′] | [min] | [K] | CO (12–11)d | CO (2–1)e | CO (12–11)/CO (2–1) | ||
|
|
||||||||
| L1157-1 | –30.2 | 140.2 | 10.0 | 0.12 | <1.9f | 64.5 | <0.04 | L1157-R |
| L1157-2 | –30.2 | 114.2 | 16.0 | 0.05 | 2.5 (0.4) | 70.1 | 0.03 (0.005) | L1157-R1 |
| L1157-3 | –36.5 | 54.2 | 9.3 | 0.10 | 4.5 (0.9) | 75.5 | 0.05 (0.01) | L1157-R0 |
| L1157-4 | 0.0 | 0.0 | 10.0 | 0.11 | 3.2 (0.9) | 42.2 | 0.07 (0.02) | L1157-mm |
| L1157-5 | 22.8 | –65.3 | 8.1 | 0.09 | 6.7 (0.7) | 95.1 | 0.06 (0.006) | L1157-B1 |
| L1157-6 | 35.4 | –114.8 | 7.4 | 0.16 | 2.9 (1.3) | 41.0 | 0.07 (0.03) | L1157-B2 |
Notes.
Position offsets are relative to the central source L1157-mm at RA 20h39m06
2 Dec +68°02′15
8 (J2000);
measured in the range from –90 km s-1 to –50 km s-1 because of an atmospheric feature on the red side beyond +50 km s-1;
from Bachiller et al. (2001), integrated from –20 km s-1 to +28 km s-1;
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