High dispersion spectra of HD 192913 and HD 224801, two objects belonging to the so called "Si - λ4200" group have been analysed. Both stars show differences in the line intensities of several elements. Hd 192913 contains iron in three stages of ionization, shows C II and has V, Cr and Zr intensified. HD 224801 shows only normal Fe and no V, Cr and Zr. The only abnormalities of this object are the enhancement of Si, Mn and some rare-earths. The paper will be published in full somewhere else.Asociación Argentina de Astronomí
We present an study of the stellar parameters, disctance and spectral energy distributions (SEDs) of...
International audienceWhile monitoring a sample of apparently slowly rotating superficially normal e...
During the past years a number of spectra of southern objects have been taken by the authors and the...
High dispersion spectra of HD 192913 and HD 224801, two objects belonging to the so called "Si - λ42...
Continuing with the spectroscopic analysis of peculiar stars. HD 22920 (22 Eri) was studied. All the...
Se prosiguió el análisis de estrellas peculiares, estudiándose dos estrellas pertenecientes al grupo...
The method of Hartoog, Cowley, and Cowley (1973) is applied to the general question of element ident...
We have obtained high-resolution (R ’ 50; 000 or 90,000), high-quality (S=Nk100) spectra of 22 very ...
The determination of fundamental parameters of stars is one of the main tasks of astrophysics. For m...
A twelve Angstron/mm blue spectrum of HD 187473, taken near phase of minimum light in uvby, has been...
Hot subluminous stars come in two flavours: sdO and sdB stars. They display peculiar helium abundanc...
Context. The chemically peculiar stars of the upper main sequence represent a natural laboratory for...
We present a detailed study of the suspected Chemically Peculiar star HD 207538 based on high resolu...
We have studied the spectrum of the star HD 37129 which is a member of the Orion OB1 association. We...
We analyse CCD spectroscopic material obtained at the Haute Provence Observatory between 1990 and 19...
We present an study of the stellar parameters, disctance and spectral energy distributions (SEDs) of...
International audienceWhile monitoring a sample of apparently slowly rotating superficially normal e...
During the past years a number of spectra of southern objects have been taken by the authors and the...
High dispersion spectra of HD 192913 and HD 224801, two objects belonging to the so called "Si - λ42...
Continuing with the spectroscopic analysis of peculiar stars. HD 22920 (22 Eri) was studied. All the...
Se prosiguió el análisis de estrellas peculiares, estudiándose dos estrellas pertenecientes al grupo...
The method of Hartoog, Cowley, and Cowley (1973) is applied to the general question of element ident...
We have obtained high-resolution (R ’ 50; 000 or 90,000), high-quality (S=Nk100) spectra of 22 very ...
The determination of fundamental parameters of stars is one of the main tasks of astrophysics. For m...
A twelve Angstron/mm blue spectrum of HD 187473, taken near phase of minimum light in uvby, has been...
Hot subluminous stars come in two flavours: sdO and sdB stars. They display peculiar helium abundanc...
Context. The chemically peculiar stars of the upper main sequence represent a natural laboratory for...
We present a detailed study of the suspected Chemically Peculiar star HD 207538 based on high resolu...
We have studied the spectrum of the star HD 37129 which is a member of the Orion OB1 association. We...
We analyse CCD spectroscopic material obtained at the Haute Provence Observatory between 1990 and 19...
We present an study of the stellar parameters, disctance and spectral energy distributions (SEDs) of...
International audienceWhile monitoring a sample of apparently slowly rotating superficially normal e...
During the past years a number of spectra of southern objects have been taken by the authors and the...
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