Cross-correlations between soft and hard light curves depending on luminosity in the transient neutron star XTE J1701-462

Using all the observations from Rossi X-ray Timing Explorer for the accreting neutron star XTE J1701−462, we carry out a systematic study of the cross-correlation function between its soft and hard light curves. Over the entire outburst, XTE J1701−462 evolves from super-Eddington luminosities to quiescence and shows both Z and atoll behaviours. Following previous work, we divide the outburst into ...