Density diagnostics derived from the OIV and SIV intercombination lines observed by IRIS

V. Polito, G. Del Zanna, J. Dudík +3

The intensity of the \oiv~2s${}^2$ 2p ${}^2$P-2s2p${}^2$ ${}^4$P and \siv~3 s${}^2$ 3p ${}^2$P- 3s 3p${}^2$ ${}^4$ P intercombination lines around 1400~Å~observed with the \textit{…