1620027

Sco X-1 is the brightest X-ray source in the sky. Located 2.8 kpc away it is a well-established persistent Z-source and one of the few neutron star binaries where extended radio jets have been resolved at milliarcseconds scales. We propose to observe Sco X-1 with INTEGRAL for 215 ks and with XMM-Newton for 80ks to obtain a (quasi-)continuous broad-band coverage of the target fully overlapping with a 72-hr continuous Global VLBI radio monitoring observation. We aim to unveil the link between specific accretion events (state transitions and/or quasi-periodic oscillations) and the launch of transient outflows and providing new insights into ultra-relativistic outflows from neutron stars and the conditions underlying their production. [truncated! Please see actual data for full text]