Table 2
Median positions, proper motions, radial velocities, and the number of stars for the various subgroups in Lupus.
Sample | α | δ | l | b | μαcosδ | μ δ | V r | Stars |
(h:m:s) | (°′′′) | (°) | (°) | (mas/yr) | (mas/yr) | (km s-1) | ||
|
||||||||
Lupus 1 | 15 46 42.1 | –35 00 46 | 338.8 | 15.3 | –14.0 | –21.1 | 2.5 ± 1.6 | 30 |
Lupus 2 | 15 56 02.1 | –37 56 06 | 338.6 | 12.0 | –15.0 | –23.1 | 2.2 ± 0.9 | 15 |
Lupus 3 | 16 08 53.2 | –39 05 34 | 339.5 | 9.4 | –12.0 | –20.4 | 1.0 ± 0.7 | 73 |
Lupus 4 | 15 59 16.5 | –41 57 10 | 336.2 | 8.5 | –10.0 | –20.8 | 0.3 ± 3.8a | 9 |
|
||||||||
Lupus (on-cloud) | 16 00 47.0 | –38 48 54 | 339.1 | 9.7 | –13.0 | –21.6 | 2.5 ± 0.4 | 160b |
Lupus (off-cloud) | 15 12 39.8 | –40 50 52 | 329.9 | 14.0 | –20.0 | –21.8 | 4.6 ± 0.4 | 57 |
|
||||||||
Lupus (full sample) | 15 49 30.7 | –38 59 48 | 338.2 | 11.0 | –16.0 | –21.7 | 3.7 ± 0.4 | 217 |
Notes. The uncertainties in the median proper motion values for each group are about 1–2 mas/yr.
The radial velocity value presented for Lupus 4 is based on only two stars and should be regarded with caution.
The number of stars in the Lupus star-forming clouds (Lupus 1–4) do not add to the total number of stars (160 stars) in the on-cloud population (see definition in Sect. 3.2), because those stars that are spread beyond the limits of these clouds (see 12CO intensity map in Fig. 3) were not assigned to any cloud.
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