The variation of P_orb during 1986–2015. Each point represents a two-year running mean. Day zero of the eruption occurred at 2011.4. (Figure 6 from Patterson, J. et al. 2017, MNRAS, 466, 581.)
The variation of P_orb during 1986–2015. Each point represents a two-year running mean. Day zero of the eruption occurred at 2011.4. (Figure 6 from Patterson, J. et al. 2017, MNRAS, 466, 581.)