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Home All issues Volume 494 / No 3 (February II 2009) A&A, 494 3 (2009) 933-948 Full HTML
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Table 3:

Star counts in the CMD boxes defined in Fig. 10. Box A samples the upper MS, boxes B, C, and D samples SG stars of blue, intermediate and red colors, respectively. $N_{\rm exp}$ is the number of stars expected in a given box from the field population, computed by rescaling the observed counts in the WF2 field by the ratio of the sampled areas. The ratio between the area of the considered field (annulus) and the area of the WF2 field (used as representative of the field population) is reported in the last column.
Field Box A Box B Box C Box D Area $_{\rm field}$/Area $_{\rm WF2}$
  $N_{\rm obs}$ $N_{\rm exp}$ $N_{\rm obs}$ $N_{\rm exp}$ $N_{\rm obs}$ $N_{\rm exp}$ $N_{\rm obs}$ $N_{\rm exp}$  
PC: 10 px $<r\le$ 160 px 68 $4.8\pm0.6$ 9 $0.7\pm 0.2$ 5 $0.2\pm 0.1$ 16 $1.5\pm 0.3$ 0.0708
PC: 160 px $<r\le$ 330 px 27 $15.7\pm1.9$ 4 $2.3\pm 0.7$ 1 $0.7\pm 0.4$ 9 $5.1\pm 1.1$ 0.2314
WF2: $r\le$ 300 px 68 -- 10 -- 3 -- 22 -- 1.0000

Source LaTeX | All tables | In the text

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