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Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. III. The Third Year (2010–2011)
Continuing the project described by Kato et al. (2009, PASJ 61, S395, arXiv:0905.1757), we collected times of superhump maxima for 51 SU UMa-type dwarf novae mainly observed during the 2010-2011Expand
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Outbursts of EX Hydrae: mass-transfer events or disc instabilities?
We present the 45-yr record of the light curve of EX Hya, and discuss the characteristics of its 15 observed outbursts. We then concentrate on the 1998 outburst, reporting the first outburst X-rayExpand
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V803 Centauri: A Helium‐rich Dwarf Nova
We report 1992-1999 photometry of the helium-rich cataclysmic variable V803 Centauri. In its high brightness state at V = 13, the star shows a strong periodic signal with P = 1618 s; this resemblesExpand
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THE 2011 ERUPTION OF THE RECURRENT NOVA T PYXIDIS: THE DISCOVERY, THE PRE-ERUPTION RISE, THE PRE-ERUPTION ORBITAL PERIOD, AND THE REASON FOR THE LONG DELAY
We report the discovery by M. Linnolt on JD 2,455,665.7931 (UT 2011 April 14.29) of the sixth eruption of the recurrent nova T Pyxidis. This discovery was made just as the initial fast rise wasExpand
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The 2000-2001 Superoutburst of the WZ Sge-Type Star RZ Leonis : A Clue to Understanding the Origin of Viscosity in Quiescent Dwarf Nova Disks
We report here on time-resolved photometric observations of the superoutburst of a dwarf nova, RZ Leo, which occurred during 2000 December–2001 January. We reveal the following characteristics of theExpand
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Survey of period variations of superhumps in SU UMa-type dwarf novae. VII. The seventh year (2014-2015)
Continuing the project described by Kato et al. (2009, PASJ, 61, S395), we collected times of superhump maxima for 102 SU UMa-type dwarf novae, observed mainly during the 2014-2015 season, andExpand
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Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IV. The Fourth Year (2011-2012)
Continuing the project described by Kato et al. (2009, arXiv:0905.1757), we studied 86 SU UMa-type dwarf novae. We confirmed the general trends such as the relation between period derivatives andExpand
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V803 Centauri: Helium Dwarf Nova Mimicking a WZ Sge-Type Superoutburst
We observed the long-term behavior of the helium dwarf nova V803 Cen, and clarified the existence of at least two distinct states (a state with 77-d supercycles and a standstill-like state) thatExpand
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Survey of period variations of superhumps in SU UMa-type dwarf novae. V. The fifth year (2012-2013)
Continuing the project described by Kato et al. (2009a, arXiv:0905.1757), we collected times of superhump maxima for SU UMa-type dwarf novae mainly observed during the 2012-2013 season. We foundExpand
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The nature of V359 Centauri revealed: New long-period SU UMa-type dwarf nova
We detected four outbursts of V359 Cen (possible nova discovered in 1939) between 1999 and 2002. Time-resolved CCD photometry during two outbursts (1999 and 2002) revealed that V359 Cen is actually aExpand
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