[vsnet-alert 21026] ASASSN-17fz: short orbital WZ Sge

Keisuke Isogai isogai at kusastro.kyoto-u.ac.jp
Thu May 18 00:13:08 JST 2017


ASASSN-17fz: short orbital WZ Sge

     Berto Monard and Josch Hambsch have reported further observations.
The object showed stage A-B transition. The periods of stage A and B are
0.054920 (18) and 0.0542 (2) d, respectively. These periods suggests that
the object is one of WZ Sge-type DNe with the shortest orbital period.
     As a result of our re-analysis, we could detect a very weak signal of early
superhumps with a period of 0.05354 (4) d. Assuming that this value is
close to its orbital period, we could estimate the mass ratio of 0.067(3)
by using these periods.
     Further observations are encouraged.



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