093580

We propose to observe 4U 1323-62 using NuSTAR and XMM for 120ks a prominentdipping X-ray binary with clocked bursts. Recent hard X-ray observations enableus to investigate the interaction between bursts and the surrounding corona.Soft X-ray photons from bursts induce cooling leading to a temporary decreasein hard X-ray flux. Simulations indicate that the deficit in the 8-24keV fluxvary depending on corona optical depth and aspect ratio. Proposed observationinvolves monitoring the orbital phase with XMM and probing burst effects on thecorona with NuSTAR data. We expect 10 X-ray bursts during the observation anduse the orbital inclination and phase to detect time-dependent changes in thehard X-ray deficit. This will enable us to constrain the size and location of the corona. [truncated! Please see actual data for full text]