Double-core evolution. II - Two-dimensional hydrodynamic effects
Abstract
The evolution of a double-core configuration consisting of a 16 solar mass supergiant and an immersed 1 solar mass neutron star is investigated with a two-dimensional numerical hydrodynamic calculation. When the orbiting neutron star is deep within the envelope, the frictional effects deposit energy rapidly enough to drive a hydrodynamic expansion that is preferentially directed in the equatorial plane. A calculation which follows the expanding material to the surface of the supergiant shows that about 1 solar mass of material is accelerated to escape velocity and suggests that ejection of the entire supergiant envelope could occur. The two-dimensional calculations are compared with previous one-dimensional calculations of double-core evolution.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- May 1984
- DOI:
- 10.1086/162049
- Bibcode:
- 1984ApJ...280..771B
- Keywords:
-
- Binary Stars;
- Hydrodynamics;
- Neutron Stars;
- Stellar Evolution;
- Stellar Mass Ejection;
- Supergiant Stars;
- Angular Momentum;
- Mass Flow;
- Stellar Envelopes;
- Stellar Models;
- Astrophysics