2040023

We ask for two INTEGRAL ToO observations of 600 ks each coordinated with the Imaging X-ray PolarimetryExplorer (IXPE)a recently launched NASA mission devoted to X-ray polarimetry. The aim of this proposal is to studyin detail the geometry and the inclination of the transient black hole low mass X-ray binaries (BH-LMXB). The IXPEobservation plan foresees for the second year of operations 5 ToOs devoted to continue the study of transient blackhole X-ray binary target. The combined IXPE/INTEGRAL observations in this case will be a unique opportunityto provide a broad-band X-ray spectroscopy and a simultaneous measure of the X-ray polarization. This will resultin an unprecedented view of the system geometry and the role of jets and corona in X-ray binaries. This proposalhas already been accepted in AO18 and AO19. However until the date of the submission of this proposal there wereno LMXB outbursts suitable for IXPE observations. [truncated! Please see actual data for full text]