WDS 21467-0010 BNG 2 : NOTES
 
 
discov_num notes refcode
BNG 2 Burningham et al. (2009) determine that ULAS J214638.83-001038.7 is a Bng2009
CPM companion to the high proper motion M4 dwarf Wolf 940. Spectral
type of the companion is T8.5 +/- 0.5. Given the distance to Wolf 940
= 12.50 +0.75/-0.67 pc, the 32" angular separation corresponds to a
projected separation of 400 +/- 22 au. Mass of the companion is 20-32
Mjup, Teff 570 +/- 25K, radius 0.094 +/- 0.004 Rsun. Observations
using Keck laser guide star AO indicated no evidence of any close
companion to the T8 companion. JHK photometry of the primary is from
2MASS. TMA2003
 
 
REFERENCES
 
 
refcode metd author reference
Bng2009 C+ j Burningham, B., Pinfield, D.J., Leggett, S.K., Tinney, C.G., Liu, M., Homeier, D., 2009MNRAS.395.1237B
Bng2009 +E2 West, A.A., Day-Jones, A., Huelamo, N., Dupuy, T.J., Zhang, Z., Murray, D. et al.
Bng2009 +Xr MNRAS 395, 1237, 2009
TMA2003 E2 j 2MASS Catalog .
TMA2003 2MASS Point Src Cat., 2003 all-sky release (http://pegasus.phast.umass.edu/)
TMA2003 (Note: 2MASS photometry also added by cataloguer to 2MASS astrometry published
TMA2003 under other references.)
TMA2003 Thurgood Marshall High School
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21467-0010 BNG 2 2007 1 253 32.2 7.49 18.85 M4 T8.5 N K 214640.47-001025.4
21467-0010 BNG 2 2009 3 251 31.6 7.49 18.85 M4+T8.5 NV K 214640.46-001024.1
21467-0010 BNG 2 2010 4 250 30.3 7.49 18.85 M4+T8.5 NV K 214640.46-001024.1

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