Appendix A:

Table A.1. Line List - List of spectral lines in the wavelength range from 668 Å to 1611 Å identified in SUMER spectra of the average quiet Sun (QS), a coronal hole (CH) and a sunspot on disk (SS). Spectral lines observed in second order of diffraction which are also given here, extend the lower wavelength limit to below 500 Å. For each entry we give the observed wavelengths in angstrøm, the identification, the transition, the peak of spectral radiance, $L^{\rm peak}$, in mW$\;$(sr$\;$m²$\;$Å)^-1 (incl. background), and a cross-reference to other line lists available in the literature (cf., Sect. 5.1). For second-order lines radiance entries are generally not provided, since the background separation in both orders of diffraction is a non-trivial task, which can not be automated. Only a few radiance values of strong second-order lines with negligible first-order contribution are given, which are marked by an asterisk (*). This line list complements Fig. 4 of the SUMER Spectral Atlas.