Double-core evolution. II - Two-dimensional hydrodynamic effects

摘要: The evolution of a double-core configuration consisting 16 M/sub sun/ supergiant and an immersed 1 neutron star is investigated with two-dimensional numerical hydrodynamic calculation. When the orbiting deep within envelope, frictional effects deposit energy rapidly enough to drive expansion that preferentially directed in equatorial plane. A calculation which follows expanding material surface shows about accelerated escape velocity suggests ejection entire envelope could occur. calculations are compared previous one-dimensional evolution.