223 citations · 3.1k across the 83 of their papers we have counts for
6 papers · 1 filter
Modelling of the ultraviolet and visual SED variability in the hot magnetic Ap star CU Vir
J. Krticka, Z. Mikulasek, T. Luftinger +4
The spectral energy distribution (SED) in chemically peculiar stars may be significantly affected by their abundance anomalies. The observed SED variations are usually assumed to b…
Distance Scale Zero-Points from Galactic RR Lyrae Star Parallaxes
G. Fritz Benedict, Barbara E. McArthur, Michael W. Feast +15
We present new absolute trigonometric parallaxes and proper motions for seven Pop II variable stars: five RR Lyr variables; RZ Cep, XZ Cyg, SU Dra, RR Lyr, UV Oct; and two type 2 C…
Rotation, magnetism, and metallicity of M dwarf systems
D. Shulyak, A. Seifahrt, A. Reiners +2
Close M-dwarf binaries and higher multiples allow the investigation of rotational evolution and mean magnetic flux unbiased from scatter in inclination angle and age since the orie…
The accuracy of stellar atmospheric parameter determinations: a case study with HD 32115 and HD 37594
L. Fossati, T. Ryabchikova, D. V. Shulyak +5
We present detailed parameter determinations of two chemically normal late A-type stars, HD 32115 and HD 37594, to uncover the reasons behind large discrepancies between two previo…
Abundance and stratification analysis of the CP star HD 103498
Chhavi P. Pandey, Denis V. Shulyak, Tanya Ryabchikova +1
Slow rotation and absence of strong mixing processes in atmospheres of chemically peculiar stars develop ideal conditions for the appearance of abundance anomalies through the mech…
A study of the photometric variability of the peculiar magnetic white dwarf WD1953-011
G. Valyavin, K. Antonyuk, S. Plachinda +14
We present and interpret simultaneous new photometric and spectroscopic observations of the peculiar magnetic white dwarf WD1953-011. The flux in the V-band filter and intensity of…