MCMC modeling of the O-C diagram for HT Cas indicates two circumbinary companions causing the long-term period variations, yielding a negative quadratic term consistent with standard CV evolution below the period gap.
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Long-term Orbital Period Variations of the Eclipsing Dwarf Nova HT Cas
MCMC modeling of the O-C diagram for HT Cas indicates two circumbinary companions causing the long-term period variations, yielding a negative quadratic term consistent with standard CV evolution below the period gap.