194 citations
- Crimean Astrophysical ObservatoryUA35 papers
- Kyoto UniversityJP34 papers
- Astronomical Institute of the Slovak Academy of SciencesSK27 papers
- British Astronomical AssociationGB25 papers
- Slovak Academy of SciencesSK24 papers
- American Association of Variable Star ObserversUS23 papers
- Osaka Kyoiku UniversityJP22 papers
- Lomonosov Moscow State UniversityRU21 papers
- Hungarian Astronomical AssociationHU20 papers
- Universidad de HuelvaES20 papers
- Bundesdeutsche Arbeitsgemeinschaft für Veränderliche SterneDE19 papers
- Russian Academy of SciencesRU18 papers
7 papers · 1 filter
Superoutburst of WZ Sge-type Dwarf Nova Below the Period Minimum: ASASSN-15po
Kosuke Namekata, Keisuke Isogai, Taichi Kato +38
We report on a superoutburst of a WZ Sge-type dwarf nova (DN), ASASSN-15po. The light curve showed the main superoutburst and multiple rebrightenings. In this outburst, we observed…
RZ Leonis Minoris Bridging between ER Ursae Majoris-Type Dwarf Nova and Novalike System
Taichi Kato, Ryoko Ishioka, Keisuke Isogai +64
We observed RZ LMi, which is renowned for the extremely (~19d) short supercycle and is a member of a small, unusual class of cataclysmic variables called ER UMa-type dwarf novae, i…
Optical flare activity in the low-mass eclipsing binary GJ~3236
S. Parimucha, P. Dubovsky, M. Vanko +1
We present our observations of the low-mass eclipsing binary GJ~3236. We have analyzed a phased light-curve and confirmed previously determined fundamental parameters of the…
Repetitive Patterns in Rapid Optical Variations in the Nearby Black-hole Binary V404 Cygni
Mariko Kimura, Keisuke Isogai, Taichi Kato +65
How black holes accrete surrounding matter is a fundamental, yet unsolved question in astrophysics. It is generally believed that matter is absorbed into black holes via accretion…
Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. VIII: The Eighth Year (2015-2016)
Taichi Kato, Franz-Josef Hambsch, Berto Monard +75
Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we collected times of superhump maxima for 128 SU UMa-type dwarf novae observed mainly during the 2015-2016…
Superoutburst of CR Bootis: Estimation of Mass Ratio of a typical AM CVn star by Stage A Superhumps
Keisuke Isogai, Taichi Kato, Tomohito Ohshima +31
We report on two superoutbursts of the AM CVn-type object CR Boo in 2014 April--March and 2015 May--June. A precursor outburst acompanied both of these superoutbursts. During the r…