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Astron. Astrophys. 340, L65-L67 (1998)

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Letter to the Editor

Origin of the proper motion and spin of pulsars

R. Cowsik

Indian Institute of Astrophysics, Sarjapur Road, Koramangala, Bangalore 560 034, India
Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai 400 005, India
McDonnell Center for the Space Sciences, Washington University, St.Louis, MO 63130, USA

Received 20 July 1998 / Accepted 25 September 1998


It is suggested that the proper motion and the spin of pulsars at birth are causally connected. Accordingly, the observed mean values of these parameters can be attributed to the recoil momentum and torque impulse imparted to the neutron star by anisotropic and asymmetric emission of neutrinos during the collapse of the core in a supernova.

Key words: pulsar – spin – proper motion – supernovae – asymmetric neutrino emission

This article contains no SIMBAD objects.


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© European Southern Observatory (ESO) 1998

Online publication: November 9, 1998