Table 4: Comparison of lifetimes for levels of Fe X.
Level Present results Experimental

3s²3p⁵ ²P $^\circ_{1/2}$ 14.51 ms 13.64 $\pm$ 0.25^a, 14.41 $\pm$ 0.14^b

3s3p⁶ ²S_1/2 234.0 ps 270 $\pm$ 20^c

3s²3p⁴(³P)3d ⁴F_9/2 77.27 ms 85.7 $\pm$ 9.2^d, 110 $\pm$ 5^e

3s²3p⁴(³P)3d ⁴F_7/2 56.47 ms 93 $\pm$ 30^d, 58 $\pm$ 10^f

3s²3p⁴(³P)3d ²F_7/2 13.69 ms 16.0 $\pm$ 1.6^f

3s²3p⁴(¹D)3d ²F_7/2 4.56 ms 4.6 $\pm$ 0.4^f

3s²3p⁴(¹D)3d ²G_9/2 12.86 ms 17.8 $\pm$ 3.1^d

^a: Moehs et al. (2001).
^b: Träbert et al. (2004).
^c: Träbert (1996).
^d: Moehs et al. (2000).
^e: Träbert et al. (2003).
^f: Träbert et al. (2002).

**Table 4:** Comparison of lifetimes for levels of Fe X.
Level	Present results	Experimental
3s²3p⁵ ²P $^\circ_{1/2}$	14.51 ms	13.64 $\pm$ 0.25^a, 14.41 $\pm$ 0.14^b
3s3p⁶ ²S_1/2	234.0 ps	270 $\pm$ 20^c
3s²3p⁴(³P)3d ⁴F_9/2	77.27 ms	85.7 $\pm$ 9.2^d, 110 $\pm$ 5^e
3s²3p⁴(³P)3d ⁴F_7/2	56.47 ms	93 $\pm$ 30^d, 58 $\pm$ 10^f
3s²3p⁴(³P)3d ²F_7/2	13.69 ms	16.0 $\pm$ 1.6^f
3s²3p⁴(¹D)3d ²F_7/2	4.56 ms	4.6 $\pm$ 0.4^f
3s²3p⁴(¹D)3d ²G_9/2	12.86 ms	17.8 $\pm$ 3.1^d

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