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Title: The binary origin of pulsar velocities
Authors: Radhakrishnan, V.
Shukre, C.S.
Keywords: Binary stars
Stellar evolution
Stellar models
Stellar motions
Stellar envelops
Stellar magnetic fields
Stellar mass accretion
Issue Date: 1987
Publisher: Reidel
Citation: High energy phenomena around collapsed stars; Proceedings of the NATO Advanced Study Institute, Cargese, France, Sept. 2-13, 1985, Dordrecht, D. Reidel Publishing Co., 1987, p271-278
Abstract: Analysis of a sample of pulsar proper-motions leads to the conclusion that most pulsars were born in and released from binary systems. A minority of pulsars belong to a class characterized by low velocities and low magnetic fields. These were significantly spun-up by accretion and released from the binary through a nonexplosive disruption of the companion. The rest belong to the high-velocity, high-magnetic field class. Using relations between the speeds at present and those in the binary orbit prior to its disruption, it is shown that such binaries must have undergone a common envelope phase of stellar evolution. The limits obtained on the masses and separations of these binary systems conform closely with those from stellar-evolution theory.
Description: Restricted Access.
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Copyright: 1987 Reidel
Appears in Collections:Research Papers (A&A)

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