T(K) cross sect. at 227 nm ----------------------------- 1062 1.22e-22 1120 2.29e-22 1172 3.63e-22 1255 8.18e-22 1339 1.19e-21 1467 2.62e-21 1484 2.85e-21 1542 6.16e-21 1686 1.066e-20