A <i>NuSTAR</i> view of SS433

Context. SS433 is a Galactic microquasar with powerful outflows (double jet, accretion disk and winds) well-known orbital, precessional, nutational period. Aims. In this work we characterise different outflow parameters throughout the precessional cycle of system. Methods. We analysed ten NuSTAR (3–70 keV) observations ?30 ks that span ?1.5 cycles. extracted averaged spectra modelled them using combination double thermal jet model ( bjet ) pure neutral relativistic reflection xillverCp relxilllpCp over an disk. Results. find average bulk velocity ? = v / c ? 0.29 opening angle ?6 deg. Eastern kinetic power ranges from 1 to 10 39 erg s ?1 , base ‘coronal’ temperatures T o ranging between 14 18 keV. Nickel-to-iron abundances remain constant at ?9 (within ? ). The western eastern jet-flux ratio becomes ?1 on intermediate phases, which about 35% total orbit. 3–70 keV unabsorbed luminosity 2 20 × 37 component mainly contributing hard 20–30 excess stationary 6.7 ionised Fe line complex. Conclusions. At low angles ?, expands sideways following adiabatic expansion gas temperature . Finally, central source lower parts could be hidden by optically thick region ? &gt; 0.1 size R N H n e0 1.5 9 cm 1700 r g for M BH 3 ?