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Table 5

Spectral line parameters used in this study.

Ion Wavelength [Å] Excit [eV] log gf Source

Y ii 4398.013 0.130 –1.000 VALD
Y ii 4900.120 1.033 –0.090 VALD
Y ii 5200.405 0.992 –0.570 VALD
Y ii 5662.929 1.944 0.450 this work
Sr ii 4305.443 3.040 –0.485 M2012
Ti ii 4163.644 2.590 –0.130 VALD
Ti ii 4399.765 1.237 –1.190 VALD
Ti ii 4417.714 1.165 –1.190 VALD
Ti ii 4563.757 1.221 –0.690 VALD
Cr ii 4145.781 5.319 –1.214 M2012
Cr ii 4275.567 3.858 –1.730 VALD
Cr ii 4554.988 4.071 –1.438 M2012
Cr ii 4565.739 4.071 –1.980 VALD

Notes. The ion, central wavelength, excitation energy, log gf value, and the source of log gf are given. In the source M2012 means Makaganiuk et al. (2012).

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