A fast pulsar in radio nebula CTB80

Astronomy and Astrophysics – Astronomy

Scientific paper

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Nebulae, Pulsars, Radio Sources (Astronomy), Astronomical Models, Interstellar Matter, Luminosity, Magnetic Flux, Supernova Remnants

Scientific paper

A fast pulsar with a period of 39.5 milliseconds has been discovered in the peculiar combination nebula CTB80. It is argued that neither the nebula nor the new pulsar is linked to the possible historical supernova in AD 1408, and it is suggested that the pulsar is at least 10,000 yr old and that the observed features in the nebula are the result of the pulsar plowing through the medium at about 300 km/s. In constrast to the other young pulsars, this pulsar has a smaller magnetic field strength and is consequently underluminous. It is argued that this pulsar is more typical of young pulsars in general, a hypothesis that raises fundamental questions about the birth and evolution of pulsars.

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