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- W2897432523 abstract "We observed the 2016 outburst of OT J002656.6+284933 (CSS101212:002657+284933) and found that it has the longest recorded [0.13225(1) d in average] superhumps among SU UMa-type dwarf novae. The object is the third known SU UMa-type dwarf nova above the period gap. The outburst, however, was unlike ordinary long-period SU UMa-type dwarf novae in that it showed two post-outburst rebrightenings. It showed superhump evolution similar to short-period SU UMa-type dwarf novae. We could constrain the mass ratio to less than 0.15 (most likely between 0.10 and 0.15) by using superhump periods in the early and post-superoutburst stages. These results suggest the possibility that OT J002656.6+284933 has an anomalously undermassive secondary and it should have passed a different evolutionary track from the standard one." @default.
- W2897432523 created "2018-10-26" @default.
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- W2897432523 date "2017-04-17" @default.
- W2897432523 modified "2023-09-27" @default.
- W2897432523 title "OT J002656.6+284933 (CSS101212:002657+284933): an SU UMa-type dwarf nova with the longest superhump period" @default.
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- W2897432523 doi "https://doi.org/10.1093/pasj/psx020" @default.
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