  The present work reports transition line parameters for Xe VIII, which are
potentially important for astrophysics in view of recent observations of
multiply ionized xenon in hot white dwarfs. The relativistic coupled-cluster
method is employed here to calculate the E1, E2, and M1 transition line
parameters with high accuracy. The E1 oscillator strengths and probabilities of
E2 and M1 transitions are determined using theoretical amplitudes and
experimental energy values. The calculated branching ratios and the lifetimes
are supplemented to the transition parameters. Accurate presentation of these
calculated data is crucial for density estimation in several stellar and
inter-stellar media.
