Orbital Period Changes in WZ Sagittae
Solar and Stellar Astrophysics
2018-05-23 v1
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)
Cite
@article{arxiv.1801.00189,
title = {Orbital Period Changes in WZ Sagittae},
author = {Joseph Patterson and Geoffrey Stone and Jonathan Kemp and David Skillman and Enrique de Miguel and Michael Potter and Donn Starkey and Helena Uthas and Jim Jones and Douglas Slauson and Robert Koff and Gordon Myers and Kenneth Menzies and Tut Campbell and George Roberts and Jerry Foote and Tonny Vanmunster and Lewis M. Cook and Thomas Krajci and Yenal Ogmen and Richard Sabo and Jim Seargeant},
journal= {arXiv preprint arXiv:1801.00189},
year = {2018}
}
Comments
PDF, 17 pages, 1 table, 5 figures; submitted, PASP; more info at http://cbastro.org/