604 citations
- Charles UniversityCZ30 papers
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7 papers · 1 filter
Rotationally modulated variations and the mean longitudinal magnetic field of the Herbig Ae star HD 101412
S. Hubrig, Z. Mikulasek, J. F. Gonzalez +8
Despite of the importance of magnetic fields for the full understanding of the properties of accreting Herbig Ae/Be stars, these fields have scarcely been studied over the rotation…
Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. II: The Second Year (2009-2010)
Taichi Kato, Hiroyuki Maehara, Makoto Uemura +56
As an extension of the project in Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 61 SU UMa-type dwarf novae mainly observed during the 2009-2010 se…
Modelling the light variability of the Ap star epsilon Ursae Majoris
D. Shulyak, J. Krticka, Z. Mikulasek +2
We simulate the light variability of the Ap star epsUMa using the observed surface distributions of Fe, Cr, Ca, Mn, Mg, Sr and Ti obtained with the help of Doppler Imaging techniqu…
Analytical expression of the magneto-optical Kerr effect and Brillouin light scattering intensity arising from dynamic magnetization
Jaroslav Hamrle, Jaromír Pištora, Burkard Hillebrands +2
Time-resolved magneto-optical Kerr effect (MOKE) and Brillouin light scattering (BLS) spectroscopy are important techniques for the investigation of magnetization dynamics. Within…
HR 7355 - another rapidly braking He-strong CP star?
Z. Mikulasek, J. Krticka, G. W. Henry +3
Strong meridional mixing induced by rapid rotation is one reason why all hot main-sequence stars are not chemically peculiar. However, the finding that the He-strong CP star HR 735…
Reachability Games on Extended Vector Addition Systems with States
Tomas Brazdil, Petr Jancar, Antonin Kucera
We consider two-player turn-based games with zero-reachability and zero-safety objectives generated by extended vector addition systems with states. Although the problem of decidin…