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- W4315705876 abstract "LS And was a transient discovered in 1971 in the M31 region and it has been argued whether it could be an intergalactic nova or a dwarf nova. Using the Zwicky Transient Facility (ZTF) data, I found that the object underwent the second known outburst in 2022 April. The behavior was that of a WZ Sge-type dwarf nova with a long fading tail and the light curves of the 1971 and 2022 outbursts matched very well. The light curves suggest that LS And is a typical WZ Sge-type dwarf nova near (but before reaching) the period minimum of cataclysmic variables. The true observed peak of the 1971 outburst was likely 12.2 mag. The outburst parameters were similar to those of other WZ Sge-type dwarf novae. The fading tail lasts more than a year and the object is still currently on this tail. There was a hint of 0.5-mag temporary brightening on the fading tail and the object appears still active after the outburst." @default.
- W4315705876 created "2023-01-12" @default.
- W4315705876 creator A5001435889 @default.
- W4315705876 date "2023-01-09" @default.
- W4315705876 modified "2023-10-01" @default.
- W4315705876 title "LS And: WZ Sge-type outburst first time since the 1971 discovery" @default.
- W4315705876 doi "https://doi.org/10.48550/arxiv.2301.03743" @default.
- W4315705876 hasPublicationYear "2023" @default.
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