Alexander W. Blocker et al. 2009 ApJ 701 1742 doi:10.1088/0004-637X/701/2/1742
Alexander W. Blocker1, Pavlos Protopapas2,3 and Charles R. Alcock3
Show affiliationsWe present a new approach to the analysis of time symmetry in light curves, such as those in the X-ray at the center of the Scorpius X-1 occultation debate. Our method uses a new parameterization for such events (the bilogistic event profile) and provides a clear, physically relevant characterization of each event's key features. We also demonstrate a Markov chain Monte Carlo algorithm to carry out this analysis, including a novel independence chain configuration for the estimation of each event's location in the light curve. These tools are applied to the Scorpius X-1 light curves presented in Chang et al., providing additional evidence based on the time series that the events detected thus far are most likely not occultations by trans-Neptunian objects.
Kuiper Belt; methods: data analysis; methods: numerical; methods: statistical; stars: individual (Scorpius X-1)
Issue 2 (2009 August 20)
Received 2009 April 6, accepted for publication 2009 June 26
Published 2009 August 4
Alexander W. Blocker et al. 2009 ApJ 701 1742
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