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Characterization of Dwarf Novae Using SDSS Colors
Taichi Kato, Hiroyuki Maehara, Makoto Uemura
We have developed a method for estimating the orbital periods of dwarf novae from the Sloan Digital Sky Survey (SDSS) colors in quiescence using an artificial neural network. For t…
Eclipses During the 2010 Eruption of the Recurrent Nova U Scorpii
Bradley E. Schaefer, Ashley Pagnotta, Aaron LaCluyze +34
The eruption of the recurrent nova U Scorpii on 28 January 2010 is now the all-time best observed nova event. We report 36,776 magnitudes throughout its 67 day eruption, for an ave…
Survey of Period Variations of Superhumps in SU UMa-Type Dwarf Novae. III: The Third Year (2010--2011)
Taichi Kato, Hiroyuki Maehara, Ian Miller +75
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…
Spectral Evolution of the Unusual Slow Nova V5558 Sgr
Jumpei Tanaka, Daisaku Nogami, Mitsugu Fujii +5
We report on the spectral evolution of the enigmatic, very slow nova V5558 Sgr, based on the low-resolution spectra obtained at the Fujii-Bisei Observatory and the Bisei Astronomic…