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Photometric variability in magnetic CP stars
The (magnetic) chemically peculiar (CP) stars of the upper main sequence are well-suited laboratories for investigating the influence of magnetic fields on the stellar surface... -
Blue straggler stars in open clusters
This paper presents a new homogeneous catalogue of blue straggler stars (BSS) in Galactic open clusters. Photometric data for 216 clusters were collected from the literature and... -
Nainital-Cape Survey. II. Null results
We search for photometric variability in chemically peculiar A type stars in the northern hemisphere. High-speed photometric observations of Ap and Am star candidates have been... -
Elemental abundance analyses. XXIX.
We performed elemental abundances analyses of the mercury-manganese (HgMn) stars 53 Tau, {beta} Tau, and {gamma} Crv consistent with previous studies of similar stars in this... -
Elemental abundances of three CP stars
We used data from the EBASIM spectrograph of the 2.1-m CASLEO telescope to study three rather sharp-lined late B to early A stars {xi} Oct (B6 IV), {alpha} Sex (B9.5 III), and... -
Elemental abundances of four A-B stars
The superficially normal stars {theta} And (A2 V), {epsilon} Del (B6 III), {epsilon} Aqr (A1.5 V), and {iota} And (B9 V), which have rotationally broadened line profiles, are... -
Non-LTE Ga abundance in HgMn stars
We present, for the first time, the Non-LTE gallium equivalent widths for the most prominent gallium transitions as identified in real spectra and in (hot) mercury-manganese... -
Geneva photometry of HDE 318107
The rotation period of the Ap star HDE 318107 has been determined from magnetic and photometric observations obtained between August 1992 and September 1998 -
ubvy Photometry of magnetic CP stars
Differential Stroemgren uvby photometric observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the magnetic CP stars HD 36668, 36 Lyn,... -
Elemental abundance analyses IV.
Using new CASLEO echelle spectrograms, we extended our elemental abundances of the sharp-lines Mercury-Manganese star {mu} Lep, 14 Hya, {kappa} Cnc, HR 4487, 28 Her, and HR... -
Properties of He-rich stars I.
A determination of the surface gravity and an abundance analysis of helium in a sample of 17 He-rich and 5 normal, reference stars is presented. These results are derived from... -
List of Early-Type Chemically Peculiar Stars
This catalogue is a subset of the "CATALOGUE OF STELLAR GROUPS" (CSG, Jaschek M. and Egret D., 1981BICDS..20...36J). It provides a list of identifications, positions, UBV... -
Catalogue and Bibliography of Mn-Hg Stars
In the present catalogue all Ap stars of the type Mn-Hg, Mn or Hg are summarized. Also, the stars which are suspected to be of this type are included. If in the literature two... -
Chemical elements in peculiar stellar spectra
A systematic search of 27 journals, IAU Symposia, and Colloquia has yielded this catalogue of identifications of chemical species in peculiar spectra Ap, Bp and Am generally.... -
uvby photometry of 4 CP stars
Differential Stroemgren uvby observations from the Four College Automated Photoelectric Telescope (FCAPT) are presented for the mCP stars 20 Eri, HR 1297, 12 CMa, and HD 134214....
