Charge Transfer in C$^{6+}$ Collisions with H and He

Charge transfer cross sections are calculated for C$^{6+}$ + H and C$^{6+}$ + He collisions using a time-dependent close-coupling method in Cartesian coordinates. Capture cross sections into the $1s$, $2l(l=0-1)$, $3l(l=0-2)$, and $4l(l=0-3)$ subshells of C$^{5+}$ are found for projectile energies ranging from 5.0 keV/amu to 15.0 keV/amu. Comparisons are made with previous calculations and recent experiments. The atomic collision data will be used to better understand the interaction of solar wind ions with interplanetary atoms.