All Tables

Table 1: Stellar parameters. Categories 1-11 refer to MK types for main sequence stars, category 12 is white dwarfs, and category 13 is giant stars. Values of the solar apex velocities $v_\odot$ and encounter frequencies $f_{\rm enc}$ (the latter in number per Myr within 1 pc) have been taken from Table 8 of García-Sánchez et al. (2001), while the velocity dispersions $\sigma _*$ are one-dimensional and correspond to those listed by García-Sánchez et al. divided by $\sqrt {3}$ . Stellar masses are taken from Allen (1985).
Table 2: Numbers of big impulses ( $n_{\rm big}$ ) and of those that take an interaction time larger than 5000 yr ( $n_{\rm slow}$ ). The ratio of the latter to the former is $f_{\rm slow}$ . The impulse limit ${\cal I}_{\rm lim}$ denotes the ratio $\vert\Delta\vec{v}\vert_{\min}/v_{\rm ref}$ . The experiment in each case involves $1\times 10^7$ random encounters.