Long-term variability of low-mass X-ray binaries
1 ISDC, University of Geneva, Geneva, CH-1211, Switzerland
2 Space Research Institute, Moscow, 117997, Russia
3 Research School of Astronomy and Astrophysics, ANU, Canberra, ACT 2611, Australia
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Published online: 8 January 2014
We consider modulations of mass captured by the compact object from the companion star’s stellar wind in Low Mass X-ray Binaries with late type giants. Based on 3D simulations with two different hydrodynamic codes used Lagrangian and Eulerian approaches – the SPH code GADGET and the Eulerian code PLUTO, we conclude that a hydrodynamical interaction of the wind matter within a binary system even without eccentricity results in variability of the mass accretion rate with characteristic time-scales close to the orbital period. Observational appearances of this wind might be similar to that of an accretion disc corona/wind.
© Owned by the authors, published by EDP Sciences, 2014
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