Corrigendum: Spectrum and energy levels of five-times ionized zirconium (Zr VI) (2016 Phys. Scr. 91 025401)

The following errors should be noted:

• 1.  
  The fourth sentence of the Abstract should read: 'We have now classified ∼420 lines as transitions between 23 odd parity levels and 73 even parity levels.'
• 2.  
  In table 5, at 427119, 4p⁴5p(³P)4P should read 4p⁴5p(³P)⁴P
• 3.  
  In table 5, at 482699, 4p⁴5P(³P)²P should read 4p⁴5p(³P)²P.
• 4.  
  On page 16, the sentence 'As can be seen, the purity of the states of the ⁴p⁴4d configuration...' should read 'As can be seen, the purity of the states of the 4p⁴4d configuration...'
• 5.  
  In table 1, a leading minus sign was omitted for many of the values of log (g_Lf). Since the values of g_UA(s⁻¹) are correct, the correct value of log(g_Lf) can be obtained from:

$$\begin{eqnarray*}&&\mathrm{log}({{\rm{g}}}_{{\rm{L}}}{\rm{f}})=\,\mathrm{log}[({{\rm{g}}}_{{\rm{U}}}{\rm{A}}){\lambda }^{2}/6.6702\times {10}^{15}],\end{eqnarray*}$$

where λ is in Å and A is in s⁻¹.

Alternatively, the correct values of log(g_Lf) can be obtained directly from:

Kramida, Ralchenko, Reader and NIST ASD Team (20l6). NIST Atomic Spectra Database (version 5.4), [Online]. Available: http://physics.nist.gov/asd (Wednesday 28 December 2016). National Institute of Standards and Technology, Gaithersburg, MD. (Before retrieving data, select desired items from the Additional Criteria, Transition Strength options.)