Search Publications
IUE UV spectra of extragalactic H II regions. I. The catalogue and the atlas.
Benvenuti, P.; Rosa, M.; Joubert, M.
More than 150 spectrograms of giant H II complexes in spiral, blue compact and irregular galaxies, excluding the Magellanic Clouds, obtained within the period March 1, 1978 and April 1, 1982 with the International Ultraviolet Explorer (IUE) in the wavelength range 1150 A to 3200 A are cataloged. Many of the observations are presented in graphic fo…
IUE low dispersion observations of symbiotic objects.
Sahade, J.; Fontenla, J. M.; Brandi, E.
The results of the study of low dispersion IUE ultraviolet spectra of 20 symbiotic stars and of the binary RY Scuti are presented in tables and graphs. The continuous and the line spectra are analyzed and discussed. Variations in line intensity and in the continuum are reported.
IUE low-dispersion spectra flux catalogue. Part 1 Normal stars (magnetic tape).
Heck, A.; Egret, D.; Jaschek, M. +1 more
A magnetic tape catalog of the fluxes (2A-step) of 229 selected low-dispersion stellar spectra prepared by the Centre de Calcul de Strasbourg-Cronenbourg is presented in the form of a set of tables. The catalog uses the general MK frame and centers on stars exhibiting normal behavior in the ultraviolet. All the stars included in the catalog are li…
The spectrum of the Be star HD 110432.
de Freitas Pacheco, J. A.; Codina, S. J.; Lopes, D. F. +1 more
The UV spectrum of HD 110432, a B0.5IIIe star, is described. The IUE spectra present broad absorption photospheric lines, very narrow absorption lines of interstellar origin and narrow absorption lines of highly ionized species (N V, C IV, and Si IV) displaced to the short wavelengths at velocities of about -1350 km s-1. The authors hav…
The spectra of late-type dwarfs and sub-dwarfs in the near ultraviolet. III. an atlas of MG II H and K profiles.
Molaro, P.; Franco, M. L.; Beckman, J. E. +5 more
Using a radically new suite of data extraction routines, IUEARM, high resolution IUE spectra of six F and G stars, taken at regular intervals since 1978 are analysed. The salient features of the new routines are: reduction of interorder scattering via two-dimensional deconvolution of the echelle spectrograph image plane, with high frequency filter…
P Cygni and related profiles in the ultraviolet spectra of O-stars.
Stalio, R.; Costero, R.
P Cygni and related profiles of the resonance lines of N V, Si IV and C IV ions are studied over a sample of 40 O-stars observed with IUE in the high resolution mode. The sample includes subdwarf stars, high luminosity population II objects, stars which are not recognized members of open clusters and/or associations, and stars which are members. T…
A comparative study of the ultraviolet spectrum of hot subdwarfs.
Altamore, A.; Viotti, R.; Rossi, L.
The high and low resolution IUE spectra of four O subdwarfs (BD +75°325, BD +48°1777, BD +37°1977, BD +37°442) are analyzed. Line identification is given for the most abundant ions in the far ultraviolet. Fe V is by far the ion with the largest number of lines. Broad P Cygni profiles of the N V and C IV resonance doublets are observed in BD +37°44…
UV and visible spectrophotometry of nine LMC Wolf-Rayet stars.
Willis, A. J.; Smith, L. J.
The first combined UV and visible spectrophotometric measurements of Large-Magellanic-Cloud Wolf-Rayet stars (6 of the WN subclass and 3 of the WC) are presented. The strengths of the He II 4686 A and 1640 A emission lines in the LMC WN stars are about twice as strong as those of their galactic counterparts. Expansion velocities and properties of …
The spectra of late type dwarfs and sub-dwarfs in the near ultraviolet II. Limits to variability in MgII emission from IUE spectrophotometry.
Molaro, P.; Franco, M. L.; Beckman, J. E. +2 more
The chromospheric h and k emission cores of the G dwarfs and subdwarfs Beta Hyi (14), Zeta Tuc (5), Delta Pav (5), and Tau Cet (5) have been monitored over a period of four years using the IUE satellite long wavelength camera. A detailed statistical examination of the data has shown that no variation in h and k fluxes of less than 15 percent could…
IUE ultra-violet spectrophotometry of 15 galactic Wolf-rayet stars.
Schmutz, W.; Nussbaumer, H.; Willis, A. J. +1 more
Low-resolution IUE ultraviolet spectrophotometry is presented of 15 galactic WR stars, covering most subtypes in the WN and WC sequences. The data are presented both as spectral plots and as tabulations of the observed absolute flux distributions covering the wavelength range of 1150-3090 A. The characteristics of these UV WR spectra are discussed…