64 citations · 130 across the 7 of their papers we have counts for
7 papers
The activity of the post-nova V1363 Cyg on long timescales
Vojtech Simon
V1363 Cyg is a cataclysmic variable (CV) and a post-nova. Our analysis of its long-term optical activity used the archival data from the AAVSO database and literature. We showed th…
The activity of the dwarf nova RU Pegasi with rapidly changing outburst types
Vojtech Simon
RU Peg is a dwarf nova (DN) of the U Gem type. Our analysis of its long-term optical activity uses the data from the AAVSO database. It concentrates on investigating the properties…
Astrophysics of "extreme" solar-like stars
M. D. Caballero-Garcia, A. J. Castro-Tirado, A. Claret +8
Only a few red dwarf flaring stars in the solar neighbourhood have undergone exceptional events called superflares. They have been detected with high-energy satellites (i.e. Swift)…
Early optical follow-up of the nearby active star DG CVn during its 2014 superflare
M. D. Caballero-Garcia, V. Simon, M. Jelinek +20
DG CVn is a binary system in which one of the components is an M type dwarf ultra fast rotator, only three of which are known in the solar neighborhood. Observations of DG CVn by t…
Complicated variations of early optical afterglow of GRB 090726
V. Simon, C. Polasek, M. Jelinek +2
We report on a detection of an early rising phase of optical afterglow (OA) of a long GRB 090726. We resolve a complicated profile of the optical light curve. We also investigate t…
Discovery and Evolution of an Unusual Luminous Variable Star in NGC 3432 (Supernova 2000ch)
R. M. Wagner, F. J. Vrba, A. A. Henden +15
We present photometric and spectroscopic observations of SN 2000ch, an unusual and extremely luminous variable star located in the galaxy NGC 3432. The object was discovered on 200…