WDS 11073-7738 SDT 2 Aa,Ab : NOTES
 
 
discov_num notes refcode
REP 17 DI Cha, a quadruple in a star-forming region in Chamaelon. Schmidt et
al. (2013) resolve the primary into a 0.2" G2/M6 pair, with estimated
orbital period of 130y. The B component is a 50mas pair of M5.5 +/-
1.5 dwarfs, with estimated period 65y. Sdt2013
Daemen et al derive component properties (units K,Lsun,Myr,Msun,Rsun):
A: SpT = G0 Teff = 6030 +- 290 L = 4.7 +- 1.0
Age = 7.1 +3.0/-0.7 M = 1.7 +- 0.2 R = 2.00 +- 0.10
B: SpT = M5 Teff = 3130 +- 290 L = 0.11 +- 0.02
Age = 3.0 +3.0/-2.8 M = 0.18 +0.06/-0.08 R = 1.13 +- 0.11 Dae2013
 
 
REFERENCES
 
 
refcode metd author reference
Dae2013 A j Daemgen, S., Petr-Gotzens, M.G., Correia, S., Teixeira, P.S., Brandner, W., 2013A&A...554A..43D
Dae2013 Kley, W., & Zinnecker, H.
Dae2013 A&A 554, A43, 2013
Sdt2013 A j Schmidt, T.O.B., Vogt, N., Neuhauser, R., Bedalov, A., & Roell, T. 2013A&A...557A..80S
Sdt2013 A&A 557, A80, 2013
Sdt2013 = South Dakota State University
 
 
DISCOVERER
 
 
idgroup discov author
1 LAF Lafreniere, D., Doyon, R., Marois, C., Nadeau, D., Oppenheimer, B.R., Roche, P.F.,
1 LAF Rigaut, F., Graham, J.R., et al.
10 LAF Lafreniere, D., Jayawardhana, R., Janson, M., Helling, C., Witte, S., &
10 LAF Hauschildt, P.
13 REP Reipurth, B. & Gee, G.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
11073-7738 SDT 2 Aa,Ab 2009 3 234 0.2 6.20 11.50 M5.5 M5.5 N K 110720.79-773807.3

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