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Home All issues Volume 510 (February 2010) A&A, 510 (2010) A102 Full HTML
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Table 1:

Optimal mixture parameters$^{\dag }$ for the HIPPARCOS (HIP) and GCS samples.

Sample 		$\char93 S(P)$ P Pop. $\sigma_{U}$ $\sigma_{V}$ $\sigma_{W}$ U V W $\varepsilon~[^\circ]$
HIP 13 551 |(U,V,W)| = 230 t $92\%$ 28.4 $\pm$  0.6 15.6 $\pm$ 2.5 12.8 $\pm$ 0.7 -10.7 $\pm$ 0.3 -13.9 $\pm$  0.4 -7.2 $\pm$ 0.2 $10\pm2$
      T $8\%$ 66.8 $\pm$ 2.3 39.4 $\pm$ 10.6 41.8 $\pm$ 1.9 -13.0 $\pm$ 0.6 -68.6 $\pm$ 3.1 -8.5 $\pm$ 0.2 $5\pm3$
  13 671 |W| = 180 D $98\%$ 32.7 $\pm$ 1.1 15.2 $\pm$ 10.7 16.4 $\pm$ 0.4 -10.8 $\pm$ 0.3 -16.6 $\pm$  0.4 -7.2 $\pm$ 0.2 $8\pm5$
      H $2\%$ 156.4 $\pm$  10.4 88.5 $\pm$ 53.2 70.5 $\pm$ 4.3 -5.3 $\pm$ 2.5 -233.1 $\pm$  20.4 -13.7 $\pm$ 3.6 $-4\pm5$
GCS 13 185 |(U,V,W)| = 230 t $96\%$ 30.6 $\pm$ 0.4 17.5 $\pm$ 1.4 15.2 $\pm$ 0.3 -10.0 $\pm$ 0.3 -15.2 $\pm$ 0.3 -6.9 $\pm$ 0.2 $ 9\pm1$
      T $4\%$ 68.8 $\pm$ 2.7 30.0 $\pm$ 15.0 40.0 $\pm$ 2.0 -8.6 $\pm$ 0.7 -81.8 $\pm$ 4.3 -11.6 $\pm$ 0.5 $6\pm2$
  13 235 |W| = 170 D $99\%$ 32.5 $\pm$ 0.7 17.8 $\pm$ 5.7 16.5 $\pm$ 0.3 -9.9 $\pm$ 0.3 -16.9 $\pm$ 0.3 -7.1 $\pm$  0.2 $ 8\pm4$
      H $1\%$ 151.0 $\pm$ 14.7 107.9 $\pm$  54.0 70.3 $\pm$  5.7 -12.2 $\pm$ 2.1 -230.0 $\pm$ 24.1 -18.3 $\pm$  3.3 $-3\pm7$

Notes.  $^{(\dag )}$ The displayed quantities are: size of the optimal sample, sampling parameter, segregated population (t = thin disc, T = thick disc, D = total disc, H = halo) and mixture proportion, velocity dispersions, mean velocities (both in km s-1), and vertex deviation.


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