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Table 3

Companion candidates.

Identifier ρ PA Contrast Sig Semi-major axis RIn M K M c c a
[mas] [°] [mag] [σ] [AU] [AU] [mag] [10-6 yr-1]

DM Tau 43 ± 7 121 ± 6 6.8 ± 0.3 4.27 6.5 ± 1.7 (±1.0) 3/19b 11.0 ± 0.3 10
LkHα 330 132 ± 3 212.9 ± 1.4 5.6 ± 0.2 4.88 37 ± 4 (±0.8) 50 5.3 ± 0.2 1000
TW Hya 101 ± 4 283 ± 2 5.6 ± 0.2 4.46 5.5 ± 0.8 (±0.2) 4 9.0 ± 0.2 10

Notes. Columns are organised by identifier, angular separation, position angle, significance, orbital separation based on previous observations of the disc inclination and position angle (error when distance error neglected), inner radius of optically thick disc, absolute magnitude of the companion, stellar accretion rate and companion mass. Dereddening was performed as described in Cardelli et al. (1989).

(a)

Values derived from Zhu (2015) assuming circumplanetary disc radii extending from 2 RJ outwards.

(b)

First value derived from fitting IR spectra, second from fitting to sub-mm data.

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