Orbital Period Changes in WZ Sagittae
arXiv:1801.00189 · doi:10.1088/1538-3873/aaa7e7
Abstract
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)
arXiv commentPDF, 17 pages, 1 table, 5 figures; submitted, PASP; more info at http://cbastro.org/
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- Miscellaneous photometric variations in cataclysmic variables: V455 And, SS Cyg, AQ Men, LQ Peg, RW Tri and UX UMa
- A Speckle-Imaging Search for Close Triple Companions of Cataclysmic Binaries