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BK Lyncis: The Oldest Old Nova?... And a Bellwether for Cataclysmic-Variable Evolution
Joseph Patterson, Helena Uthas, Jonathan Kemp +21
We summarize the results of a 20-year campaign to study the light curves of BK Lyncis, a nova-like star strangely located below the 2-3 hour orbital period gap in the family of cat…
Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. IV: The Fourth Year (2011-2012)
Taichi Kato, Franz-Josef Hambsch, Hiroyuki Maehara +85
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…
The orbital and superhump periods of the deeply eclipsing dwarf nova PU UMa
Jeremy Shears, Franz-Josef Hambsch, Colin Littlefield +5
We report unfiltered photometry during superoutbursts of PU UMa in 2009 and 2012. The amplitude was 4.5 magnitudes above mean quiescence and lasted at least 9 to 10 days. Superhump…
The orbital and superhump periods of the dwarf nova SDSS J093249.57+472523.0
Jeremy Shears, Steve Brady, Shawn Dvorak +4
We report unfiltered CCD photometry of the eclipsing dwarf nova SDSS J093249.57+472523.0 obtained during its first confirmed outburst in 2011 March. The outburst amplitude was at l…