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Galaxy interactions II High density environments

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Figure

Fig. 1. Image of an extraordinary multiple interaction within a SDSS galaxy group. The host group has 27 members with M Virial = 2.12 × 10 13 M  .
Fig. 2. Upper and medium panels a) and b) show the distributions of M r and z in pair galaxies (solid lines) and in the control sample (dashed lines)
Table 2. Probability of di fferent galaxy pair classes to be the brightest galaxy in the group /cluster.
Fig. 6. Stellar age indicator, D n (4000) versus M r for merging, tidal, and non-disturbed pairs (upper, middle, and lower panels, respectively, in the color scale shown in the key)
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