Free Access

Table 6

Projected orbital separations and linear orbital movement fit results from absolute astrometric measurements.

Object Proj. Change in Change
sep. separation in PAa
[AU] [mas/yr] [°/yr]

RX J0915.5-7609 AB 25 2.77b ± 0.64 –2.58 ± 0.37
RX J0919.4-7738
(AaAb)Bc 511 –2.97 ± 5.64 0.07 ± 0.06
AaAb 6 –0.17 ± 0.39 –4.10 ± 0.20
RX J0935.0-7804 AB 69 4.61 ± 0.37 –0.65 ± 0.06
RX J0952.7-7933 AB 47 1.14b ± 0.26 –1.65b ± 0.06
RX J1014.2-7636 AB 41 10.67 ± 0.53 1.94b ± 0.45
SZ Cha AB 845 0.26 ± 2.44 0.01 ± 0.07
Ced 110 IRS 2 AB 24 –2.18 ± 2.32 –2.95 ± 1.15
Cha Hα 2 AB 35 –4.09 ± 2.20 0.57 ± 0.83
VW Cha A(BC)d 120 –0.98 ± 0.57 0.27 ± 0.07
BC 19 –3.59b ± 0.42 –0.57 ± 0.26
RX J1109.4-7627 AB 13 –1.34 ± 0.69 –5.82 ± 0.55
HD 97300 AB 139 –4.10 ± 2.96 –0.02 ± 0.16
WX Cha AB 130 –2.48 ± 2.70 –0.19 ± 0.16
WY Cha AB 20 –0.73 ± 2.00 –0.50 ± 1.07
HJM C7-11 AB 29 –1.11e ± 1.63 –0.39 ± 0.33
Sz 41 AB 326 –0.97 ± 2.28 –0.03 ± 0.10
HM Anon AB 45 –1.77 ± 1.35 0.75 ± 0.33

Notes. 

(a)

PA is measured from N over E to S.

(b)

Possible indications present for curved orbital motion.

(c)

See d in Table 9.

(d)

See e in Table 8.

(e)

Not using the data point by Ghez et al. (1997) given in Table 9.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.