Wa. Feibelman, A REASSESSMENT OF THE IUE EMISSION-LINE SPECTRUM OF THE PLANETARY-NEBULA NGC-5189 AND ITS CENTRAL STAR, Publications of the Astronomical Society of the Pacific, 109(739), 1997, pp. 982-989
Citations number
32
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Publications of the Astronomical Society of the Pacific
Archival high-and low-dispersion IUE spectra of NGC 5189 and its centr
al star were reexamined. It was found that earlier published results m
isinterpreted nebular features for stellar emission lines due to incor
rect coordinates and/or incorrect pointing of the spacecraft. NGC 5189
has an UV spectrum rich in emission lines of He II, C II], C III, C I
II], C IV, C V, N III], N IV], O I, O III, O III], O IV], O V, O VI, O
VII, O VIII, [Ne III], [Ne IV], [Ne V], [Mg V], [Ar IV], Si III], and
Fe II. The data were reextracted and the emission line fluxes were me
asured. Electron density for C III] and terminal wind velocities from
C IV P Cygni profiles were determined. Comparisons of the IUE spectra
of NGC 5189 and NGC 6905 show that these objects have very similar cha
racteristics.