Table 1
Results of space motion determinations for low-mass Sco-Cen members.
US | UCL | LCC | |
---|---|---|---|
Nstellar | 1335 | 3057 | 3466 |
Nlate type | 1108 | 2417 | 2665 |
NCMD | 992 | 2232 | 2371 |
Inside | 851 | 1772 | 1697 |
Inside ambiguous | 51 | 58 | 20 |
Outside | 90 | 402 | 654 |
U (kms−1) | −5.5 | −7.4 | −9.7 |
V (kms−1) | −16.5 | −18.5 | −18.6 |
W (kms−1) | −6.8 | −5.6 | −7.0 |
NRVall | 260 | 510 | 483 |
Diffuse | 9.1% | 18% | 28% |
Population |
Notes. Nstellar denotes the total number of stars, Nlate type denotes the number of stars with BP-RP > 1, NCMD denotes the number of stars inside the chosen region in the CMD diagram. The row “inside” gives the number of stars located inside the respective ellipse in UV-space (cf. Fig. 7) centered on the US, UCL, or LCC, respectively, “inside ambiguous” gives the number of stars inside more than one ellipse, “outside” gives the number of stars outside any of the ellipses centered on US, UCL, or LCC. The rows U,V,W give the mean space velocity of the “inside” stars, NRVall provides the number of stars with Gaia DR2 available radial velocities, and the row “Diffuse population” provides the estimated percentage of the diffuse population. The quoted space velocities are with respect to the Sun. No LSR correction has been applied. See text for more details.
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