Photodissociation of CS from Excited Rovibrational Levels
  Accurate photodissociation cross sections have been computed for transitions
from the X $^1\Sigma^+$ ground electronic state of CS to six low-lying excited
electronic states. New ab initio potential curves and transition dipole moment
functions have been obtained for these computations using the multi-reference
configuration interaction approach with the Davidson correction (MRCI+Q) and
aug-cc-pV6Z basis sets. State-resolved cross sections have been computed for
transitions from nearly the full range of rovibrational levels of the X
$^1\Sigma^+$ state and for photon wavelengths ranging from 500 $\text{\AA}$ to
threshold. Destruction of CS via predissociation in highly excited electronic
states originating from the rovibrational ground state is found to be
unimportant. Photodissociation cross sections are presented for temperatures in
the range between 1000 and 10,000 K, where a Boltzmann distribution of initial
rovibrational levels is assumed. Applications of the current computations to
various astrophysical environments are briefly discussed focusing on
photodissociation rates due to the standard interstellar and blackbody
radiation fields.
