Pulsar kicks and dark matter from a sterile neutrino

Details Pulsar kicks and dark matter from a sterile neutrino Pulsar kicks and dark matter from a sterile neutrino

2004-04-26

arxiv.org/abs/astro-ph/0404483v1

Int.J.Mod.Phys. A20 (2005) 1148-1154

Astronomy and Astrophysics

Astrophysics

7 pages, 1 figure; invited talk at the Coral Gables Conference (CG2003), Ft. Lauderdale, Florida, December 17-21, 2003

Scientific paper

10.1142/S0217751X0502402X

The observed velocities of radio pulsars, which range in the hundreds kilometers per second, and many of which exceed 1000 km/s, are not explained by the standard physics of the supernova explosion. However, if a sterile neutrino with mass in the 1-20 keV range exists, it would be emitted asymmetrically from a cooling neutron star, which could give it a sufficient recoil to explain the pulsar motions. The same particle can be the cosmological dark mater. Future observations of X-ray telescopes and gravitational wave detectors can confirm or rule out this explanation.

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