Sr II wave(A) loggf source Chi_low log(N_SrII/Ntot) 4077.709 +0.148 NIST5 0.00 -9.17 wings in emission 4161.792 -0.47 NIST5 23715.19 -9.17 4215.510 -0.173 NIST5 0.00 -9.17 wings in emission ? 4305.443 -0.11 NIST5 24516.65 -9.17 blend