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Table 3
Results of the empirical analysis.
| Spectral types | Gravity | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Source | Visual | NIR | Score (a) | Type | |||||
| H2 O (H) (b) | H2 O-1 (J) (c) | H2O-2 (K) (c) | FeHz | FeHj | K Ij | H-cont | |||
| USco 1610-1913 B | M9 ± 0.5 | M9.1 ± 0.2 | L0.1 ± 0.2 | M8.9 ± 0.2 | 2 | 2 | 2 | 2 | v-low |
| HIP 77900 B | M9 ± 0.5 | M8.4 ± 0.5 | M9.9 ± 0.4 | M9.5 ± 0.5 | 1 | 2 | 1 | 2 | int |
| HIP 78530 B | M8 ± 0.5 | M8.4 ± 0.4 | M8.4 ± 0.4 | M8.2 ± 0.4 | 1 | 2 | 1 | 2 | int |
| USco 1607-2242 | M9 ± 0.5 | L1.1 ± 1.9 | L1.7 ± 1.5 | L0.7 ± 1.7 | n | 1 | 2 | 2 | v-low |
| USco 1608-2232 | M9 ± 0.5 | L0.9 ± 0.8 | L1.5 ± 0.6 | L0.1 ± 0.7 | 2 | 2 | 1 | 2 | v-low |
| USco 1606-2335 | M9 ± 0.5 | M9.9 ± 0.9 | L0.5 ± 0.8 | M9.3 ± 1.0 | 2 | 1 | 1 | 2 | int |
| USco 1610-2239 | M9 ± 0.5 | M9.9 ± 0.5 | L0.3 ± 0.4 | M9.3 ± 0.5 | 2 | 2 | 2 | 2 | v-low |
| USco 1608-2315 | M8.5 ± 1.0 | L0.0 ± 0.4 | L0.6 ± 0.4 | M9.1 ± 0.4 | 2 | 2 | 1 | 2 | v-low |
| USco 1607-2211 | M8.5 ± 1.0 | M9.4 ± 0.5 | L0.4 ± 0.4 | M8.3 ± 0.5 | 2 | 2 | 1 | 2 | v-low |
Notes. The systematic differences about the spectral-type determination are discussed in Appendix B.
References.Relations and coefficients: (a) Allers & Liu (2013), (b) Allers et al. (2007), (c) Slesnick et al. (2004).
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