Orbital Period Changes in WZ Sagittae

(2) Center for Backyard Astrophysics; (3) Middlebury Coll.; (4) Univ. de Huelva. (5) Viktor Rydberg-Djursholm); David Skillman (2); Donn Starkey (2); Douglas Slauson (2); Enrique de Miguel (4); Geoffrey Stone (2); George Roberts (2); Gordon Myers (2)

arxiv: 1801.00189 · v1 · pith:W6A26XKSnew · submitted 2017-12-30 · 🌌 astro-ph.SR

Orbital Period Changes in WZ Sagittae

Joseph Patterson (1) , Geoffrey Stone (2) , Jonathan Kemp (3) , David Skillman (2) , Enrique de Miguel (4) , Michael Potter (2) , Donn Starkey (2) , Helena Uthas (5)

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Jim Jones (2) Douglas Slauson (2) Robert Koff (2) Gordon Myers (2) Kenneth Menzies (2) Tut Campbell (2) George Roberts (2) Jerry Foote (2) Tonny Vanmunster (2) Lewis M. Cook (2) Thomas Krajci (2) Yenal Ogmen (2) Richard Sabo (2) Jim Seargeant (2) ((1) Columbia Univ. (2) Center for Backyard Astrophysics (3) Middlebury Coll. (4) Univ. de Huelva. (5) Viktor Rydberg-Djursholm)

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keywords changeorbital-periodratesagittaetimeswigglesa-changinapparent

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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)

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Orbital Period Changes in WZ Sagittae

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