http://arxiv.org/abs/1801.00189
We report a long-term (1961-2017) study of the eclipse times in the dwarf nova WZ Sagittae, in an effort to learn its rate of orbital-period change. Some wiggles with a time scale of 20-50 years are apparent, and a connection with the 23-year interval between dwarf-nova eruptions is possible. These back-and-forth wiggles dominate the O-C diagram, and prevent a secure measurement of the steady rate of orbital-period change.
The line, it is drawn, the curse, it is cast.
The slow one now will later be fast…
For the times, they are a-changin’.
– Dylan (1963)
J. Patterson, G. Stone, J. Kemp, et. al.
Wed, 3 Jan 2018
39/59
Comments: PDF, 17 pages, 1 table, 5 figures; submitted, PASP; more info at this http URL
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