. F IGURE . 6. The distributions of halo clusters projected onto the XY [(a) and (c)] and YZ [(b) and (d)] planes for old-halo clusters with (B-R)/(B+V+R) 0.85 [(a) and (b)] and young-halo clusters [(c) and (d)]. The open and filled circles in (c) and (d) show clusters with (B-R)/(B+V+R) 0.32 and (B-R)/(B+V+R)>0.32 , respectively. Other notation is the same as in Fig. 2. discussion in the text | previous figure | next figure .