On Space Velocities of Binary Stars in Which One Component Has Experienced a Supernova Explosion

Details On Space Velocities of Binary Stars in Which One Component Has Experienced a Supernova Explosion On Space Velocities of Binary Stars in Which One Component Has Experienced a Supernova Explosion

Dec 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997apj...491..303i&link_type=abstract

Astrophysical Journal v.491, p.303

Astronomy and Astrophysics

Astronomy

8

Stars: Binaries: Close, Stars: Kinematics, Stars: Neutron, Stars: Supernovae: General

Scientific paper

When one component of an evolved binary loses a significant fraction of its initial mass in a symmetric supernova explosion but remains bound to its companion, the remnant binary recoils with a velocity that can be comparable to the orbital velocity of the supernova precursor. This velocity is enough to explain the observed peculiar space velocities and/or distances from the Galactic plane of most X-ray binaries and binary OB runaway stars. Some exceptions certainly occur, but uncertainties in estimates of velocities and distances, as well as mechanisms other than a popular asymmetric kick, may be responsible for most of the exceptions.

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