VizieR Online Data Catalog: Nebular [OIII] collision strengths - SS3 (Storey+, 2015)

The data set consists of ten Upsilon files labeled 'up_mn.dat' and ten Downsilon files labeled 'do_mn.dat' where m=1,2,3,4 and n=2,3,4,5 with m<n. The indices m and n refer respectively to the lower and upper level index as given in the table below. The Upsilon data are scaled by a multiplicative factor of exp(-dEij/(kT)) where dEij is the energy gap between the lower and upper levels while k and T are the Boltzmann constant and electron temperature respectively. In each one of the Upsilon and Downsilon files, the 10-based logarithm of the effective collision strengths are tabulated in a rectangular array where the columns represent 10-based logarithm of electron temperature: logT=2.0(0.025)4.3, while the rows represent kappa: (1K) kappa=1.600(0.025)1.975, 2.0(0.1)2.9, 3.0(0.2)4.8, 5.0(0.5)9.5, 10(1)19, 20(2.5)47.5, 50(5)95, 100(25)175, 200(50)450, 500(100)900, 1000(1000)5000, 10000, 50000, 100000 and 1000000. Some values of the logarithmic scaled Upsilon are replaced by the '99999999' marker because they fall below certain limits and hence they are practically useless. More details about these issues and any other issue can be found in the associated paper (see above).

(2 data files).