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Vitesses radiales. Catalogue WEB: Wilson Evans Batten. Subtittle: Radial velocities: The Wilson-Evans-Batten catalogue.
Duflot, M.; Figon, P.; Meyssonnier, N.
We give a common version of the two catalogues of Mean Radial Velocities by Wilson (1963) and Evans (1978) to which we have added the catalogue of spectroscopic binary systems (Batten et al. 1989). For each star, when possible, we give: 1) an acronym to enter SIMBAD (Set of Identifications Measurements and Bibliography for Astronomical Data) of th…
Radio to X-ray energy distribution of BL Lacertae objects.
Giommi, P.; Micol, A.; Ansari, S. G.
We present multifrequency spectra of a large number of radio and X-ray selected BL Lacertae objects constructed using non-simultaneous archival data. The data were obtained using the European Space Information System (ESIS) and are from several radio and optical catalogues, the IRAS Faint Source Catalogue, the Einstein and the EXOSAT databases. Th…
The EXOSAT GSPC iron line catalog.
Parmar, A. N.; White, N. E.; Taylor, B. G. +3 more
We report on the global properties of the Fe feature seen in the 6-7keV spectra of X-ray sources observed with the EXOSAT Gas Scintillation Proportional Counter (GSPC). Of a total of 431 spectra extracted from the EXOSAT archive, 205 required the addition of a Gaussian emission line to the continuum spectrum in order to obtain satisfactory fits. T…
Ultraviolet spectral evolution of star clusters in the IUE library.
Alloin, D.; Bonatto, C.; Bica, E.
The ultraviolet integrated spectra of star clusters and H II regions in the IUE library have been classified into groups based on their spectral appearance, as well as on age and metallicity information from other studies. We have coadded the spectra in these groups according to their S/N ratio, creating a library of template spectra for future ap…
The field horizontal-branch B-type star Feige 86.
Bonifacio, P.; Hack, M.; Castelli, F.
IUE and visible high resolution spectra of the halo B-type star Feige 86 are analyzed with the aim to get further insight into the atmospheric parameters and surface chemical composition of this Pop II star. The analysis is mostly based on the comparison of photometric, spectrophotometric, and spectroscopic observations with color indices, fluxes,…
Automated classification of IUE low-dispersion spectra. I. Normal stars.
Ponz, J. D.; Vieira, E. F.
Along the life of the IUE project, a large archive with spectral data has been generated, requiring automated classification methods to be analyzed in an objective form. Previous automated classification methods used with IUE spectra were based on multivariate statistics. In this paper, we compare two classification methods that can be directly ap…
Mesures de vitesses radiales. VII. Accompagnement AU sol du programme d'observation du satellite Hipparcos. Radial velocities. VII. Ground based measurements for Hipparcos.
Duflot, M.; Burnage, R.; Genty, V. +2 more
We publish 734 radial velocities of stars distributed in 28 fields of 4x4deg. We continue the PPO series (Fehrenbach et al. 1987; Duflot et al. 1990 and 1992), using the Fehrenbach objective prism method.
Chemical abundances of southern symbiotic stars.
Pereira, C. B.
Allen's (1984) optical spectra of symbiotic stars were used in order to derive some elemental ratios and He abundances. The studied systems were those for which spectrophotometry was available in his catalogue, i.e. LMC S63, Y Cra, SS 29, He2-104, SS 38, He2-106, V455 Sco, He2-127, He2-171, AE Ara, SS 122 and Hen 1242 (=KX TrA). Estimates for the …
A search for wind variability in central stars of planetary nebulae.
Patriarchi, P.; Perinotto, M.
All the high resolution spectra of central stars of Planetary Nebulae (CSPN) obtained so far with the SWP camera of the IUE satellite have been examined for variability in their P Cygni profiles. The available data allowed to explore the constancy or changes of the line profiles in fourteen CSPN over time scales of months to various years. In nine…
Multifrequency monitoring of RU Lupi. I. Observations.
Rossi, C.; Giovannelli, F.; Vittone, A. A. +7 more
In this paper we present the results of a long campaign of coordinated (sometimes simultaneous) multifrequency observations, from X-ray to radio wavelengths of the extreme T Tauri star RU Lupi. The large amount of data obtained can be useful to understanding the physics governing the intriguing behaviour of this pre-main-sequence star. In particul…