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Table 2

Observational properties of the young BDs.

System name RA Dec K (mag) Integration time (s) S/N Date of observation
2MASS J12003792-7845082 12 00 37.94 −78 45 08.28 11.6 3000 18.5 2023-03-04
TWA 28 11 02 09.84 −34 30 35.56 11.9 4800 20.6 2023-03-03
2MASS J08561384-1342242 08 56 13.84 −13 42 24.27 12.5 4800 16.3 2023-03-04

Notes. The signal-to-noise ratio (S/N) is calculated at 2346 nm. The apparent K-band magnitudes are from the 2MASS catalogue and have an associated uncertainty of 0.02 mag (Cutri et al. 2003).

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