Abstract

Energy levels and wavelengths of lines of the oxygen isoelectronic sequence due to transitions of the type 2s²2p⁴–2s²2p³3s are presented for K xii through Mn xvii, and are compared with previous identifications, where available. Two additional lines due to this transition array are also observed for Cl x. The identifications were made by graphic extrapolation and comparison with published semi-empirical theoretical calculations.

© 1973 Optical Society of America

Fluorine isoelectronic sequence

U. Feldman, G. A. Doschek, R. D. Cowan, and Leonard Cohen
J. Opt. Soc. Am. 63(11) 1445-1453 (1973)

Spectra of Fe, Co, Ni, and Cu Isoelectronic with Na i and Mg i

U. Feldman, L. Katz, W. Behring, and L. Cohen
J. Opt. Soc. Am. 61(1) 91-95 (1971)

Spectra of Ions in the Fluorine i Isoelectronic Sequence from Sc xiii to Cu xxi

Leonard Cohen, U. Feldman, and S. O. Kastner
J. Opt. Soc. Am. 58(3) 331-334 (1968)

Relative Line Strengths of the Forbidden 2s²2p²P–2s2p^{2 4}P Transitions in the B i Isoelectronic Sequence

J. E. Hansen
J. Opt. Soc. Am. 59(6) 722-726 (1969)

Carbon-Like Spectra of Sc xvi, Ti xvii, and V xviii in the Range 16–22 Å

S. Goldsmith, U. Feldman, A. Crooker, and L. Cohen
J. Opt. Soc. Am. 62(2) 260-264 (1972)