Image Details
 
                    Caption: Figure 6.
The QPE recurrence time t rec shows significant long-term evolution, varying between 0.76 and 1.10 days across 3 yr (and doing so non-monotonically, possibly hinting at a longer-term precession period of ∼10–100s of days).
© 2024. The Author(s). Published by the American Astronomical Society.