Astronomy and Astrophysics – Astrophysics
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..771b&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 15, 1984, p. 771-779. Research supported by the University of Cali
Astronomy and Astrophysics
Astrophysics
76
Binary Stars, Hydrodynamics, Neutron Stars, Stellar Evolution, Stellar Mass Ejection, Supergiant Stars, Angular Momentum, Mass Flow, Stellar Envelopes, Stellar Models
Scientific paper
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.
Bodenheimer Peter
Taam Ronald E.
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