O2 absorption cross section (Herzberg continuum), 205 -240 nm, from:
* Yoshino, K., A. S.-C. Cheung, J. R. Esmond, W. H. Parkinson, 
*  D. E. Freeman, S. L. Guberman, A. Jenouvrier, B. Coquart, and
*  M. F. Merienne, Improved absorption cross sections of oxygen
*  in the wavelength region 205-240 nm of the Herzberg continuum,
*  Planet. Space Sci., 36, 1469-1475, 1988.
*  (also the JPL-94 and -97 recommendation)
w, nm   xs, 1.e-24 cm2
205	7.35
206	7.13
207	7.05
208	6.86
209	6.68
210	6.51
211	6.24
212	6.05
213	5.89
214	5.72
215	5.59
216	5.35
217	5.13
218	4.88
219	4.64
220	4.46
221	4.26
222	4.09
223	3.89
224	3.67
225	3.45
226	3.21
227	2.98
228	2.77
229	2.63
230	2.43
231	2.25
232	2.10
233	1.94
234	1.78
235	1.63
236	1.48
237	1.34
238	1.22
239	1.10
240	1.01