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Element abundances of 4 metal-poor stars
The oldest stars in the Milky Way are metal-poor with [Fe/H]<-1.0, and they show peculiar elemental abundances compared to solar. The relative variations of the chemical... -
Line list and abundance errors
In recent years, the R-Process Alliance (RPA) has conducted a successful search for stars that are enhanced in elements produced by the rapid neutron-capture (r-)process. In... -
Phosphorus-rich stars. II.
The atmospheres of phosphorus-rich (P-rich) stars have been shown to contain between 10 and 100 times more P than our Sun. Given its crucial role as an essential element for... -
The lithium-rich giant stars puzzle
The existence of one percent of lithium-rich giant stars among normal, lithium-poor giant stars continues to be poorly explained. By merging two catalogues - one containing... -
lambda Boo stars in binary systems spectra
The origin of {lambda} Boo stars is currently unknown. Very few of them are known as members of multiple systems, which could provide benchmark laboratories to study their... -
High-resolution spectroscopy of V348 Sgr
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uvby photometry of four CP stars
Differential Stroemgren uvby photometric observations from the Four College Automated Photoelectric Telescope of four chemical peculiar stars is presented and analyzed. The... -
CP stars
Fine analyses of the silicon star HD 43819 and the CP star HD 147550 are presented using ATLAS9 model atmospheres whose predictions fit the optical region spectrophotometry and... -
CaII & MgII data base
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CP2 SrCrEu stars light variation
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Blue stragglers in open clusters
An amount of 959 blue straggler candidates were selected from their position in the colour-magnitude diagram in 390 open clusters of all ages. A set of basic data is given for... -
Photometry of magnetic CP stars
Photometry in the Stroemgren and Geneva systems is used to improve the ephemerides of the magnetic CP stars 56 Tau, HD 111133, HD 126515 and HD 215441. -
Catalogue of associations IRAS and S stars
Cross identifications between the General Catalogue of Galactic S Stars (GCGSS), the IRAS Point Source Catalogue (PSC), and the Guide Star Catalogue (GSC) are presented. The... -
Velocities & rotation of CP stars
As part of a systematic project we have determined radial velocities and projected rotational velocities for a sample of 186 chemically peculiar stars which have been observed... -
uvby photometry of 4 CP stars
Differential Stroemgren uvby photometric observations from the Four College Automated Photoelectric Telescope refine the rotational periods and define the shapes of the light... -
uvby photometry of metallic & Hg-Mn stars
Differential Stroemgren uvby photometric observations from the 0.75-m Four College Automated Photoelectric Telescope were obtained for three metallic-line and three... -
Lambda Boo stars consolidated catalogue
This paper describes the first steps towards the homogenization of the lambda Bootis group, leading to a concise definition of lambda Bootis stars: Population I, hydrogen... -
Abundances of mu Lep, 7 Sex, HR 4817 & 28 Her
Elemental abundances are derived for four sharp-lined stars, the Mercury-Manganese stars {mu} Lep, HR 4817, and 28 Her, and 7 Sex, a Population I star with Population II space... -
uvby photometry of 4 CP stars
Differential Stroemgren uvby photometric observations from the Four College Automated Photoelectric Telescope are presented for four magnetic chemically peculiar stars.... -
Photometry of chemically peculiar stars
Differential Stroemgren uvby photometric observations from the Four College Automated Photoelectric Telescope are presented for four Chemically Peculiar stars of the upper main...
