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Table 3
Estimation of the NIR spectral types based on spectral indices.
Name | Opt SpT | Reference | Empirical SpT | Index SpT | NIR SpT | ||||
H2O | H2OD | H2O-1 | H2O-2 | ||||||
|
|||||||||
DE J1245 | M9.5 | 1 | M9 | M9.5 ± 1.0 | M8.0 ± 1.0 | L0.5 ± 0.5 | M9.0 ± 1.0 | M9.5 ± 1.0 | |
EROS J0032 | L0γ | 2,6 | L1 | L1.0 ± 1.0 | L0.0 ± 1.0 | L1.0 ± 0.5 | L0.5 ± 1.0 | L0.5 ± 0.5 | |
2M J2213 | L0γ | 8 | L0 | L1.0 ± 1.0 | M9.5 ± 1.0 | L3.5 ± 0.5 | L0.0 ± 1.0 | L2.0 ± 1.5 | |
Cha J1305 | L0 | 3,7 | L1 | L2.5 ± 1.0 | L2.5 ± 1.0 | L5.0 ± 0.5 | L2.0 ± 1.0 | L3.5 ± 1.5 | |
2M J2322 | L2γ | 4, 8 | L2 | L4.0 ± 1.0 | L1.0 ± 1.0 | L2.0 ± 0.5 | L2.5 ± 1.0 | L2.0 ± 1.0 | |
2M J2126 | L3γ | 4, 8 | L3 | L3.0 ± 1.0 | L5.5 ± 1.0 | L2.0 ± 0.5 | L4.5 ± 1.0 | L3.0 ± 1.5 | |
2M J2208 | L3γ | 5, 8 | L1 | L7.0 ± 1.0 | L2.0 ± 1.0 | L3.5 ± 0.5 | L2.0 ± 1.0 | L3.0 ± 2.0 |
Reference. [1] Looper et al. (2007); [2] Reid et al. (2008); [3] Allers et al. (2006); [4] Reid et al. (2008); [5] Allen et al. (2007); [6] Allers & Liu (2007); [7] Alcalá et al. (2008); [8] Cruz et al. (2009).
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