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Ultraviolet and Optical Spectra of High-Ionization Seyfert Galaxies with Narrow Lines
Peterson, Bradley M.; Korista, Kirk T.; Wagner, R. Mark +2 more
Ultraviolet and optical spectra are presented for three unusual Seyfert galaxies (Mrk 1239, Mrk 42, and Mrk 493) that resemble Seyfert 1 galaxies in that they have strong high-ionization lines and strong nonstellar continua, but resemble Seyfert 2 galaxies in that the widths of their permitted lines are as narrow as the widths of their forbidden l…
The Ultraviolet Variations of K Scuti
Monier, R.
This paper reports on low resolution observations of the pulsating star Delta Scuti (F2IIIp) obtained with the International Ultraviolet Explorer (IUE) at different phases of the 4 hr and 40 min pulsation cycle. The ultraviolet flux varies in phase with the optical flux measured with the Fine Error Sensor (FES). The amplitude of the ultraviolet va…
Ultraviolet Observations of a Bright Southern Quasar
Strauss, Michael A.; Kirhakos, Sofia; Fisher, Karl B. +2 more
We present low-resolution ultraviolet spectra of the QSO 09149 - 6206 (z = 0.057) obtained with the International Ultraviolet Explorer. The spectrum shows strong emission lines of Ly α, C IV, C III], Mg II, and Fe II. The Fe II blend centered at 2080 A is unusually strong; this may be a consequence of overcorrection for the 2175 A silicate feature…