WDS 02490-1029 BRG 16 BC : NOTES
 
 
discov_num notes refcode
BRG 16 The system is precisely at the 3 sigma threshold for statistically
significant exclusion of the background star hypothesis. By chance,
the AB astrometry is just below the criterion (2.7 sigma) and BC is
just above (3.1 sigma), so in principle the BC pair is inconsistent
with chance alignment, if the pair does share a common proper motion
with A. However, the proper motion of the system has of course been
determined based on A, so until the AB physical connection has been
demonstrated to the required accuracy, the 3.1 sigma confidence of the
BC pair is irrelevant. Hence, we label the entire system as
undetermined for now, although it is obviously very likely that the
whole system is indeed bound. Jnn2012
 
 
REFERENCES
 
 
refcode metd author reference
Jnn2012 Cl j Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S., 2012ApJ...754...44J
Jnn2012 +E2 Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
Jnn2012 ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b) 2014ApJS..214...17J
 
 
DISCOVERER
 
 
idgroup discov author
1 BRG Bergfors, C. Brandner, W., Janson, M., Daemgen, S., Geissler, K., Henning, T.,
1 BRG Hippler, S., Hormuth, F., Joergens, V., & Koehler, R.
10 BRG Bergfors, C. Brandner, W., Daemgen, S., Biller, B., Hippler, S., Janson, M.,
10 BRG Kudryavtseva, N., Geissler, K., Henning, T., & Koehler, R.
11 BRG Bergfors, C. Brandner, W., Bonnefoy, M., Schlieder, J., Janson, M., Henning, Th. &
11 BRG Chauvin, G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
02490-1029 BRG 16 BC 2010 1 217 0.2 10.00   M3.5 M3.5 K 024902.28-102922.0
02490-1029 BRG 16 BC 2012 3 228 0.2 10.00   M3.5 M3.5 NV K 024902.28-102922.0
02490-1029 BRG 16 BC 2017 4 245 0.2 10.00   M4.0+M4.0 NV K 024902.28-102922.0
02490-1029 BRG 16 BC 2018 5 249 0.2 10.00   M4.0+M4.0 NV K 024902.28-102922.0
02490-1029 BRG 16 BC 2019 6 252 0.2 10.00   M4.0+M4.0 NV K 024902.28-102922.0
02490-1029 BRG 16 BC 2020 7 254 0.2 10.00   M4.0+M4.0 NV K 024902.28-102922.0
02490-1029 BRG 16 BC 2021 8 258 0.2 10.00   M4.0+M4.0 NV K 024902.28-102922.0

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