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arXiv · 1902.02118

The Superoutburst Duration versus Orbital Period Relation for AM CVn stars

John Cannizzo·Gavin Ramsay
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Abstract

We examine the relationship between superoutburst duration $t_{\rm dur}$ and orbital period $P_{\rm orb}$ in AM CVn ultra-compact binary systems. We show that the previously determined steep relation derived by Levitan et al (2015) was strongly influenced by the inclusion of upper limits for systems with a relatively long orbital period in their fit. Excluding the upper limit values and including $t_{\rm dur}$ values for three systems at long $P_{\rm orb}$ which were not considered previously, then $d \log (t_{\rm dur})/ d \log (P_{\rm orb})$ is flat as predicted by Cannizzo & Nelemans(2015)

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John Cannizzo, Gavin Ramsay. 2019-02-06. The Superoutburst Duration versus Orbital Period Relation for AM CVn stars. https://doi.org/10.3847/1538-3881%2Fab04ac

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