Secular Evolution of Quasiperiodic Eruptions: eRO-QPE2
This analysis used eleven XMM-Newton observations of eRO-QPE2 over 4.33 years to study its emission components and timing modulations. Findings show eruption peak count rates are constant while quiescent rates decline linearly with oscillation, suggesting different emitting regions. Bayesian inference constrains the orbit to be low-eccentricity and reveals a long-term orbital decay rate.