update OI CS per Antonio Garcia report

this has the following bugfix which seems simple enough. With gcc / ubuntu there is one botch in the test suite, grid_extreme.out: ChkMonitor botch>>H+ 0 4.2965 = 4.3194 0.051 0.050 which is marginal and an extreme case. This seems like a simple enough bugfix.

I would port this to c17_branch since it is a bugfix

the following is the message of the simple commit to this branch

email of 2021 May 5 In the last few days, I've been collecting rates for O i +e inelastic collisions. I started with Barklem, A&A 462, 781-788 (2007) and tried to cast the rates into Omega_ij strengths. After accounting for the partitioning into the 3 fine-structure levels (lumped together by Barklem), I was in a position to compare my Omega_ij with those reported in the stout datafile. I was able to match the Omega_ij for all transitions from the 1,2,3 levels into the 4,5,6 levels, and also the 4-->5 transition.

I'm not able, however, to reproduce the Omega_ij values reported in stout for the 1,2,3-->7 transition (from O(3P_J=2,1,0) into the level at 9.52 eV). I didn't check the transitions into more energetic states. The comments at the bottom of the stout o_1.coll file (attached here for your reference) note that there may be some inconsistencies. I'm also attaching the values that I estimated myself for transitions within levels up to 10 eV. I would appreciate your comments on this difference. If you think it may be useful, I can send you a more extended table with the Omega_ij for additional transitions.

Thank you!

Antonio García Muñoz

Dr. Habil. Planetary/Atmospheric Scientist IRFU/DAP/LDE3 CEA Paris-Saclay Bât. 703 Orme des Merisiers 91191 Gif-sur-Yvette Cedex, France http://antoniogarciamunoz.wordpress.com/