T(K) cross sect. at 174 nm 295 4.57e-17 400 4.39e-17 500 4.22e-17 600 4.06e-17 700 3.90e-17 800 3.75e-17 900 3.61e-17 1000 3.47e-17 1100 3.34e-17 1200 3.21e-17 1280 3.11e-17