The Complex IUE Spectrum of the ``O VI Sequence'' Planetary Nebula NGC 2867

Abstract

The IUE spectrum of the planetary nebula NGC 2867 and its central star displays a rich variety of emission lines that has not been reported before. Fluxes for more than 80 UV features were determined from low- and high-dispersion spectra. Electron densities of log N_e = 3.4 +/- 0.1 cm^-3 from C III], log N_e = 3.9 +/- 0.2 cm^-3 from [Ne IV], and log N_e = 3.25 +/- 0.2 cm^-3 from O IV] diagnostics were derived. Detection of O VIII lines (I.P. = 871 eV) are thought to require a corona or strong stellar winds, yet no strong P Cygni profiles were observed. Several resonantly excited Fe II lines were identified.