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Home All issues Volume 499 / No 3 (June I 2009) A&A, 499 3 (2009) 851-863 Full HTML
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Table 1:

List of Si, Cr, and Fe spectral lines used for stratification calculations. Columns give the ion identification, central wavelength, excitation potential, oscillator strength ($\log (gf)$) and the Stark damping constant ( $\log~\gamma_{\rm St}$) for T=10 000 K. The last column gives reference for the adopted oscillator strength.
Ion $\lambda$ (Å) $E_{\rm i}$ (eV) $\log (gf)$ $\log~\gamma_{\rm St}$ Ref. Ion $\lambda$ (Å) $E_{\rm i}$ (eV) $\log (gf)$ $\log~\gamma_{\rm St}$ Ref.
Si II 5055.984 10.074 0.593 -4.78 SG Cr II 7419.646 4.750 -2.64 -6.630 RU
Si II 5056.317 10.074 -0.359 -4.78 SG            
Si I 5690.425 4.930 -1.76 -4.57 NIST Fe I 4250.120 2.469 -0.405 -5.410 MFW
Si I 5948.54 5.082 -1.23  -4.45 NIST Fe I 4271.760 1.485 -0.164 -6.070 MFW
Si II 5957.559 10.067 -0.301 -5.02 SG Fe II 4508.288 2.856 -2.35 -6.530 RU
Si II 5978.930 10.074 0.004 -5.01 SG Fe II 4576.340 2.844 -2.98 -6.530 RU
Si I 6142.483 5.619 -1.420 -3.57 astr Fe II 4635.316 5.956 -1.58  -6.560 RU
Si II 6371.371 8.121 -0.030 -5.32 BBCB Fe II 4923.927 2.891 -1.50  -6.500 RU
Si I 7003.569 5.964 -1.78  -4.28 astr Fe I 4924.770 2.279 -2.241 -5.890 BK
Si I 7034.901 5.871 -1.780 -3.63 astr Fe II 4993.358 2.807 -3.68  -6.530 RU
Si I 7944.001 5.984 -1.310 -3.93 NIST Fe I 4994.130 0.915 -3.080 -6.150 MFW
Si I 8892.720 5.984 -0.830 -4.37 astr Fe II 5045.114 10.308 0.00  -5.250 RU
            Fe I 5049.820 2.279 -1.355 -5.910 BWLW
Cr II 3484.147 2.455 -2.14 -6.611 RU Fe II 5061.718 10.308 0.28  -5.330 RU
Cr I 4274.797 0.000 -0.231 -6.240 MFW Fe II 5149.465 10.448 0.55 -5.180 RU
Cr II 4634.070 4.072 -1.236 -5.359 RU Fe I 5165.410 4.220 -0.40 -4.710 astr
Cr I 4652.157 1.004 -1.03  -6.297 MFW Fe I 5198.711 2.223 -2.135 -6.070 MFW
Cr II 4901.623 6.487 -1.14  -6.792 RU Fe II 5291.666 10.480 0.54 -5.260 RU
Cr I 4922.265 3.104 0.27 -6.193 MFW Fe I 5365.399 3.573 -1.02 -6.250 BWLW
Cr I 4936.336 3.113 -0.34 -6.205 MFW Fe II 5427.826 6.724 -1.58  -6.500 RU
Cr II 5116.049 3.714 -3.64  -6.584 RU Fe I 5434.523 1.011 -2.122 -6.220 MFW
Cr II 5174.850 6.869 -2.42  -6.792 RU Fe II 5439.707 6.729 -2.38  -6.500 RU
Cr I 5204.511 0.941 -0.208 -6.154 MFW Fe I 5576.089 3.430 -1.000 -5.390 MFW
Cr II 5246.768 3.714 -2.56  -6.660 RU Fe II 6084.111 3.199 -3.880 -6.530 RU
Cr I 5296.691 0.983 -1.400 -6.120 MFW Fe I 6127.907 4.143 -1.399 -6.020 BWLW
Cr I 5297.377 2.900 0.167 -3.807 MFW Fe I 6165.360 4.143 -1.474 -6.020 BWLW
Cr I 5304.180 3.464 -0.692 -5.301 MFW Fe I 6335.331 2.198 -2.177 -6.160 BWLW
Cr II 5310.687 4.072 -2.41 -6.643 RU Fe I 6336.824 3.686 -0.856 -5.380 BK
Cr II 5502.067 4.168 -2.12 -6.630 RU Fe II 6432.680 2.891 -3.69 -6.500 RU
Cr II 5564.741 10.893 0.51 -5.364 RU Fe I 6820.372 4.638 -1.320 -4.470 MFW
Cr II 5678.390 6.484 -1.50 -6.627 RU Fe I 7155.630 5.010 -0.724 -4.820 K
Cr II 6112.261 4.745 -2.98 -6.656 RU Fe I 7221.202 4.559 -1.470 -5.110 K
Cr I 6661.075 4.193 -0.19  -5.002 MFW Fe II 7222.394 3.889 -3.40  -6.520 RU
Cr I 7400.249 2.900 -0.111 -5.326 MFW            
SG - Schulz-Gulde (1969); NIST - Ralchenko et al. (2008); BBCB - Berry et al. (1971); RU - Raassen & Uylings (1998, ftp://ftp.wins.uva.nl/pub/orth) K - Kurucz (2008); MWF - Martin et al. (1988); BK - Bard & Kock (1994).

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