103 citations · 283 across the 7 of their papers we have counts for
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The pecular magnetic field morphology of the white dwarf WD 1953-011: evidence for a large-scale magnetic flux tube?
G. Valyavin, G. A. Wade, S. Bagnulo +4
We present and interpret new spectropolarimetric observations of the magnetic white dwarf WD 1953-011. Circular polarization and intensity spectra of the H spectral line demonst…
Cyclic brightening in the short-period WZ Sge-type cataclysmic variable SDSS J080434.20+510349.2
S. V. Zharikov, G. H. Tovmassian, V. V. Neustroev +8
We have observed a new cataclysmic variable (CV) SDSS J080434.20+510349.2 and study the origin of a long-term variability found in its light curve. Multi-longitude time-resolved ph…
The BOES spectropolarimeter for Zeeman measurements of stellar magnetic fields
Kang-Min Kim, Inwoo Han, Gennady G. Valyavin +9
We introduce a new polarimeter installed on the high-resolution fiber-fed echelle spectrograph (called BOES) of the 1.8-m telescope at the Bohyunsan Optical Astronomy Observatory,…
The Lorentz force in atmospheres of CP stars: Aurigae
D. Shulyak, G. Valyavin, O. Kochukhov +7
Several dynamical processes may induce considerable electric currents in the atmospheres of magnetic chemically peculiar (CP) stars. The Lorentz force, which results from the inter…
Interplay between diffusion, accretion and nuclear reactions in the atmospheres of Sirius and Przybylski's star
Alexander Yushchenko, Vera Gopka, Stephane Goriely +8
The abundance anomalies in chemically peculiar B-F stars are usually explained by diffusion of chemical elements in the stable atmospheres of these stars. But it is well known that…
A search for kilogauss magnetic fields in white dwarfs and hot subdwarf stars
G. Valyavin, S. Bagnulo, S. Fabrika +4
We present new results of a survey for weak magnetic fields among DA white dwarfs with inclusion of some brighter hot subdwarf stars. We have detected variable circular polarizatio…