Constraining the duty cycle of transient low-mass X-ray binaries through simulations. (arXiv:1904.06713v1 [astro-ph.HE])
<a href="http://arxiv.org/find/astro-ph/1/au:+Carbone_D/0/1/0/all/0/1">Dario Carbone</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wijnands_R/0/1/0/all/0/1">Rudy Wijnands</a>
We report the results of the application of the simulation method used in
Carbone et al. (2017) to a large number of observations obtained using the
Swift X-ray telescope on several Galactic globular clusters. We calculated the
ratio between the duty cycle we input in our simulations and the one we measure
after the simulations. We found that for high values of the measured duty
cycle, the measurements overestimate the input values, while for low measured
duty cycle the opposite happens. This is caused by the fact that for sources
with rare outbursts (thus low duty cycles), missing one outburst is affecting
the measurement significantly, while for sources that are more frequently in
outburst the fact that the duty cycle is not constant can bias our estimate
towards higher values.
We report the results of the application of the simulation method used in
Carbone et al. (2017) to a large number of observations obtained using the
Swift X-ray telescope on several Galactic globular clusters. We calculated the
ratio between the duty cycle we input in our simulations and the one we measure
after the simulations. We found that for high values of the measured duty
cycle, the measurements overestimate the input values, while for low measured
duty cycle the opposite happens. This is caused by the fact that for sources
with rare outbursts (thus low duty cycles), missing one outburst is affecting
the measurement significantly, while for sources that are more frequently in
outburst the fact that the duty cycle is not constant can bias our estimate
towards higher values.
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