Spectral and Temporal Investigations of the Unique Dipping Source XB 1323-619

XB 1323619 is a stable dipping LMXB which has uniquely quasiperiodic burstingresulting in a new phenomenon: regular occurence of bursts in dips whenouter accretion disk is highly ionized. XMM will for the 1st time allowthis to be used as a novel diagnostic of bursts and giving electrondensity and ionization state in outer disk. Spectral analysis of complexdip evolution reveals the nature of emission regions allowing for the 1sttime testing whether the blackbody arises on neutron star or accretiondisk; rejection of the latter has important consequences. We can alsomake a detailed study of burst evolution (out of dips). XMM can test whether truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]